Is this a complete sentence:
Tomorrow good?
As I understand it, first you change the interrogatory to declarative so the question becomes whether Tomorrow (is) good is a sentence.
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You might benefit from looking up 'sentence fragments' which some confusingly term 'minor sentences', and 'crots', here and elsewhere. – Edwin Ashworth Sep 8 '17 at 10:07
It's acceptable in dialogue. It's short for "Is tomorrow good?"
Although it can be understood by inflection, '[is] tomorrow good' is ambiguous with 'tomorrow [is] good', so 'tomorrow good' is not grammatical.
Well, no, it's not a complete sentence. It's an incomplete sentence, like Get out of here!
Both of these lack their first word. In one the missing first word is the preposed auxiliary is,
and in the other the missing first word is the subject pronoun you.
This is all part of a general and very common phenomenon in spoken but not in formal written English called Conversational Deletion. No need to worry about it.
answered Feb 10 '16 at 0:59
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Thanks, that's a very interesting link. I didn't know that an imperative like Go! was considered an incomplete sentence. I thought that the understood subject and all the understood parts make it complete (i.e., I order you to go!) – Osvaldo Feb 10 '16 at 19:00
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But I'm not a grammarian. I write and these distinctions usually don't concern me as I do know that the piece's formality dictates what's proper to some degree. To me, just as a layman, a sentence is complete if there is no ambiguity in the subject, verb and object. (Note: this statement does not mean logically that if a sentence is ambiguous it's not complete.) So Tomorrow good? is, by my definition, complete if it's texted to one person and the context makes clear what "good" means. When I wrote that in a text, a grammarian commented on my use of sentence fragments so that got me thinking... – Osvaldo Feb 10 '16 at 19:08
