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I am a native English speaker, yet I cannot explain to a non-native speaker why I say:

I am interested in history.

as well as

History is interesting to me.

Why is it "is interesting" when history is the subject, but not when I am?

5
  • Ask Wren n Martin!
    – n0nChun
    Commented Mar 18, 2011 at 12:16
  • @n0nChun, is this question OT for this SE site?
    – phooze
    Commented Mar 18, 2011 at 12:36
  • I think the confusion is because you think "interesting" is a verb, while actually it is an adjective.
    – timur
    Commented Mar 18, 2011 at 15:20
  • But timur, there's an exact parallel between the adjectives and the verbs: I'm being killed by this history course. This history course is killing me. Commented Mar 18, 2011 at 19:41
  • @Jason: Yes, the parallel you mentioned seems to be causing the confusion.
    – timur
    Commented Mar 20, 2011 at 22:17

5 Answers 5

4

Start with the verb form:

History shocks me.

There are two parties to this kind of shocking event: a shock-er, the one doing the shocking (in this case, history); and a shock-ee, the one being shocked (in this case, me). In grammar, the first is called the agent and the second the patient.

English would be very confusing if we had no way to tell which was which! Fortunately we do. When shock is used as a verb, the main hint is the word order: John shocked Kaitlin vs. Kaitlin shocked John. The subject is the agent. The direct object is the patient.

To turn a verb into an adjective, we use different suffixes that help make this distinction. The suffix -ing makes an adjective (called a participle) that describes the agent: shockshocking, tends to shock people. The suffix -ed makes an adjective (called the past participle) that describes the patient: shockshocked, startled or upset.

(Many words have irregular past participles: breakbroken, not breaked.)

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  • Thanks for this. The number one upvoted answer was also good - but I was asking for a grammatical - which you gave me ;) Cheers
    – phooze
    Commented Mar 20, 2011 at 2:38
11

To expand on the other answers, there is nothing special about interesting vs interested.

  • I am interested in X. — X is interesting to me.
  • I am excited about X. — X is exciting to me.
  • I am worried about X. — X is worrying to me.
  • I am horrified by X. — X is horrifying to me.
  • I am surprised by X. — X is surprising to me.
  • I am puzzled by X. — X is puzzling to me.
  • I am amazed by X. — X is amazing to me.

And so on, and so forth. And note how saying "X is interested in me" would be perfectly grammatical. It just wouldn't mean the same thing as "I am interested in X". But I don't see why that should be surprising. At all.

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  • @Reg: How i wish p->q implied q->p
    – n0nChun
    Commented Mar 18, 2011 at 13:25
  • 2
    @n0nChun: You'd better mind your p's and q's.
    – Robusto
    Commented Mar 18, 2011 at 13:39
  • 2
    @Robusto: how do you make those upside-down b's and d's?
    – RegDwigнt
    Commented Mar 18, 2011 at 13:42
  • @Reg: How do you make those upside down laterally inverted d's and b's?
    – n0nChun
    Commented Mar 18, 2011 at 13:45
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People are interested; topics are interesting

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  • 1
    "Linguistics is interested in words."
    – MrHen
    Commented Mar 18, 2011 at 20:41
  • @MrHen in this case "Linguistics" refers to the research community or discipline, rather than to the topic. Commented Aug 25, 2012 at 12:24
0

They are both adjectives, but:

Interesting refers to the subject. Interested refers to the direct object.

Therefore using the wrong one would mean that 'I' am interesting, not History.

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  • In both example sentences, the adjective refers to the subject. Commented Mar 18, 2011 at 19:44
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If you wanted to make yourself the object, you could also say:

History interests me.

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