What's the best way to find the subject in a sentence? How do you define a subject? I am especially curious about such cases, in which the subject seems to be represented by more than one word:

The majority of people didn't mind the new policy.

A great number of students went on strike yesterday.


and such cases where the passive voice is used:

The man was bit by a dog.

Children were frightened by the wolf.

Also, please, consider such cases with ergative verbs:

I broke my chair.

The chair broke.

The chair was broken by me.

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    Are you looking for how to find the simple subject or the complete subject? (the difference being whether you want the modifiers or not)
    – Dusty
    Commented Dec 8, 2010 at 22:54
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    @brilliant - you've actually just self-illustrated the difference between the simple subject and the complete one. What you're calling the subject is the 'simple subject'. That is the specific noun/pronoun. The 'complete subject' is just the simple subject with its modifiers. In your first example 'majority' is the simple subject, while 'the majority of people' is the complete subject. Based on your question though, you've answered mine, which is that you're looking for the simple subject.
    – Dusty
    Commented Dec 9, 2010 at 15:00
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    In general, it's the 'thing' (person, object, whatever) that is doing or being in the sentence. So, if you can find the verb, find who or what is 'verbing'. For instance 'ran' is the verb, so, 'who/what ran?' 'the young'. It can work for some passive voice sentences like 'He was trampled by a car'. So, 'trampled' is the verb, so 'Who/what tramped?' 'the car'. Note that some sentences use implied or missing subjects. These include imperative sentences which use the implied 'you' such as "Go home" and some passive voice sentences like 'Mistakes were made' 'Who/what made?' it's not said..
    – Dusty
    Commented Dec 9, 2010 at 15:43
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    Eep. my apologies. I started thinking about agent, and not the subject. In the passive voice, the subject is the receiver of the action, so 'he' was the subject in 'he was trampled'
    – Dusty
    Commented Dec 9, 2010 at 16:19
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    @brilliant: I would hesitate to say that the order in the sentence will ALWAYS determine which is the subject, but it is the usual form. In the examples you listed 'majority' and 'number' are the simple subjects.
    – Dusty
    Commented Dec 11, 2010 at 14:18

6 Answers 6


Subjects are noun phrases, and usually have more than one word in them, but they can be just one word, if there are no modifiers. Subject is a grammatical concept restricted to languages with nominative-accusative systems, like most Indo-European languages. Languages like Basque, Georgian, Quiché, or Pitjantjatjara, which have absolutive-ergative systems, do not support a meaningful concept of Subject.

Virtually all tensed English clauses (including all simple sentences), require a Subject constituent.
Besides its position before the verb phrase, the grammatical properties of a Subject include:

  • number agreement with the verb phrase
    The ladies are arriving ~ The lady is arriving
  • inversion with auxiliary in questions
    The old man in the trenchcoat is coming => Is the old man in the trenchcoat coming?
  • pronominalization in tag questions
    Those guys are the ones, aren't they?
  • upstairs control of A-Equi deletion, plus downstairs deletion by Equi
    Bill wanted to see the painting = Bill wanted (for Bill) to see the painting.
  • promotion by Subject-Raising (often obligatory)
    *For there to be beer in the fridge tends => There tends to be beer in the fridge.
  • movement and optional deletion by Passive
    Acme Construction erected this building in 1936 => This building was erected in 1936.
  • contraction with auxiliary (especially pronouns)
    The old woman has/is gone now => The old woman's gone now

In addition, there are semantic criteria governed by predicates. Most predicates will only accept certain types of noun phrase as subjects, and lots of tests can be fashioned with different verbs.

  • +1 Helpful. You could add uniqueness there too. Commented Nov 12, 2015 at 16:06
  • I'm not sure what you mean by "uniqueness" here. You mean "there is one and only one subject"? That depends on how you define subject, and whether you claim there's always one. What's the subject in It's raining, for instance? Some would say there isn't one, and some would say the dummy. Commented Nov 12, 2015 at 16:37
  • Can you point me to a source that can help me better understand "equi raising?" You mentioned this in several posts and linked to one of your materials, but I couldn't understand it. Commented Nov 13, 2015 at 2:04
  • Equi and Raising are two different rules that apply (mostly) to infinitives. They basically distinguish agentive predicates (Equi) from aspectual predicates (Raising). Often one can't tell which is which, and tests are necessary. Commented Nov 13, 2015 at 2:39
  • @michael_timofeev I've added a link to Equi vs Raising to the answer. Commented Jul 10, 2021 at 17:46

This is actually a difficult question, and to some degree the answer depends on the theoretical framework you are using. As Dusty says, whether you consider the bare N or the whole NP (i.e. with or without complements and modifiers) as the subject is a matter of choice, and once you have passives then the syntactic subject may not be the semantic subject. In the 80's some grammarians decided that 'subject' wasn't a useful concept, and generalised it to the concept of a syntactic pivot.

The point of which is not (just ;-)) to air my knowledge, but to point out that finding a definition which will cope with every edge case is hard.

  • Thank you Colin for this link and for your answer. Syntactic pivot is definitely something new to me, I've never heard about it, but it seems that the concept of syntactic pivot is exactly what I am trying to arrive at here. It looks to be like this concept embraces and reconciles all those contradictory cases like passive-voice constructions and others.
    – brilliant
    Commented Dec 10, 2010 at 1:01
  • Collin, do you think we could define a subject as "either the performer of an action or its receiver, whichever comes first in a sentence or in a clause"? As far as I can see, both in active and passive voice constructions subject precedes the action: 'Ann broke the chair' ("Ann" is the subject), 'The chair was broken by Ann' ("The chair" is the subject). (I just asked Dusty the same question here)
    – brilliant
    Commented Dec 10, 2010 at 4:59
  • Any definition depending on order certainly doesn't work in general. In "The person that I saw", whether you consider the whole sentence, or just the relative clause "that I saw", the subject "I" follows its object.
    – Colin Fine
    Commented Dec 10, 2010 at 11:24
  • "...the relative clause "that I saw", the subject "I" follows its object" - Why? As far as I understand, here the relative clause "I saw" doesn't have any objects at all. Here we only have the word "I", which is the object of this relative clause, and the verb "saw", which is the verb-only predicate that is expressing the action performed by the subject "I". And the main clause here not only lacks any objects, but also has no predicate - there is no word expressing any action that the "person" would perform. So, the whole sentence 'The person that I saw' doesn't contain any objects at all.
    – brilliant
    Commented Dec 10, 2010 at 12:03
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    I was wrong in saying "the whole sentence": it isn't a sentence, and if it is made into one, the whole thing I quoted will be the subject (back to your original question). But in the relative clause itself, "saw" is the verb, "I" is the subject and "that" is the only thing which can plausibly be called the object, and it precedes the subject.
    – Colin Fine
    Commented Dec 10, 2010 at 15:47

A simplistic explanation: the subject is the noun acting in a sentence, the predicate is the action/verb and the object being acted upon.

For example:

[Subject] [ Predicate ]

[Subject] [[Verb] [Object]]

[The majority of people] [[didn't mind] [the new policy]]

If you want to dig deeper, the rules of sentence construction are more complicated with many variations and caveats.

I like marenostrum's practical suggestion of asking a who or what question, but it can be misinterpreted:

What was was it that people didn't mind?

The new policy.

What did a great number of students do yesterday?

They went on strike.

  • Please see Edit 1 in marenostrum's answer. Commented Dec 9, 2010 at 14:11
  • @CJM: "the subject is the noun acting in a sentence, the predicate is the action/verb and the object being acted upon" - So, what about passive-voice cases: "The tree has been cut down by the woodcutter"? According to your definition "woodcutter" must be the subject because "woodcutter" is the acting noun in the sentence, and the "tree" then must be the object as it is the tree that is being acted upon. But shouldn't it actually be the other way around?
    – brilliant
    Commented Dec 9, 2010 at 15:02
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    @brilliant: You failed to quote the 'A simplistic explanation:' preface and the 'If you want to dig deeper, the rules of sentence construction are more complicated with many variations and caveats.' line that I followed with. I look forward for your complete and all-encompassing answer to the OP.
    – CJM
    Commented Dec 9, 2010 at 15:37
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    @CJM: Passive-voice usage, I think, is so ubiquitous that it should also somehow fit into the simplistic explanation. However, I admit that you had the full right to attach your own meaning to "simplistic explanation". By the way, I AM the OP :)
    – brilliant
    Commented Dec 9, 2010 at 15:46
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    @Brilliant: "I AM the OP" - in that case, I'll probably let you off.
    – CJM
    Commented Dec 9, 2010 at 17:20

A practical way might be asking the sentence the question who. or what. (See RegDwight's comment, and "Edit 1" below) The answer is the subject.

With your examples:

The majority of people didn't mind the new policy.

Who didn't mind the new policy?

the majority of people

A great number of students went on strike yesterday.

Who did go on strike yesterday?

a great number of students

Edit 1: I am omitting the question what. In fact I was not fine with it while writing it. I wrote it in case of the subject be neuter but that was a mistake. So we should ask who not taking into account the answer may be a "it". Such as: The clever white mouse ate the cheese. Who did eat the cheese? The clever white mouse. Obviosly, the question what leads us to the object if asked against the subject: What did the white clever mouse eat? The cheese.

  • I'll play the devil's advocate and ask: 1) The majority of people didn't mind what? 2) A great number of students went on what yesterday? Or even, 3) What did a great number of students do yesterday? So the subject is: 1) the new policy, 2) strike, 3) went on strike. (^_^)
    – RegDwigнt
    Commented Dec 9, 2010 at 11:03
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    Playing "devils advocate" is the best and @ReDdwigth's objection is totally just. However, I believe that the technique is still valid. I should have expressed it in a more refined way. I'm going to edit my answer. Commented Dec 9, 2010 at 12:34
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    My previous objection wasn't really to the word "what" itself. Much rather, we need a way to distinguish the nominative what from a non-nominative what. Note that the same is true for who, what's with whom falling out of use. Observe: "I gonna call Ghostbusters." What is the subject in this sentence here? Let's see: "Who you gonna call?" — "Ghostbusters!"
    – RegDwigнt
    Commented Dec 9, 2010 at 14:38
  • Thank you Marenostrum, but isn't it that relying exclusively on who-questions can also be somewhat misleading in some cases? For example, "John thinks he is The Man" - Who does he think he is? It seems to me that the answer to this question will be "The Man", but the subject is "John", not "The Man".
    – brilliant
    Commented Dec 9, 2010 at 14:42
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    @RegDwight and @brilliant : How about adding the rule "ask who against the predicate? Does it work and exclude the wrong answers? Commented Dec 9, 2010 at 14:58

In general, the subject is known as the doer or agent or be-er in an active sentence whereas it can be a recipient or the receiver of action in a passive sentence. Normally subjects come at the beginning of simple sentences or clauses. e.g.

  • The dog bit me. (active)
  • I was bit by the dog. (passive)

In the case above, the dog is the subject of first sentence (in active voice) and I is the subject of second sentence (in passive).

A simple sentence or a clause usually takes the form of subject + predicate. To be clear, the subject is the noun/pronoun/noun phrase that stands before the predicate. (Predicate is the phrase containing verb and object/complement which describes something about the subject.)

  • "To be clear, the subject is the noun/pronoun/noun phrase that stands before the predicate" - I think you should read my polemic with Colin Fine in the comments right below his answer here. There I also asserted that a subject always stands before the predicate, and he "beat" me there with a simple example of a direct speech: '"I don't want to go there" - said Lily'. 'Lily' here is a subject that follows the predicate 'said'.
    – brilliant
    Commented Jun 24, 2012 at 14:23

A verb needs a who/what-indication. In statements the who/what-indication stands on the left-hand side of the verb.

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