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# Sentence fragment

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Intern
Joined: 18 May 2017
Posts: 48

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16 Aug 2017, 10:24
I have a question about fragment sentences, that is sentences that lack verb or subject. Let's take those two examples from Manhattan sentence correction strategy guide:

1. The cat sitting by the stairs watched the mouse.
2. A new textbook focused on recent advances in artificial intelligence assigned by our instructor.

According to Manhattan's explanation, the first sentence is grammatically correct as it includes a subject (cat) and a verb (watched). On the contrary, the second sentence is fragment because it lacks a main verb. Up to their explanation, for the sentence to be grammatically correct , the sentence should written as "A new textbook ... was assigned" (we should add "was" before the word assigned).

I don't understand what is the difference - in structure - between the two sentences that make's the first sentence right and the second sentence wrong. In other words, why should we add the word "was" to the second question but not to the first sentence?

Manager
Joined: 20 Jun 2016
Posts: 61

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16 Aug 2017, 11:27
Only assigned makes it a past participle so in order to make it a verb we need to add the was

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Intern
Joined: 18 May 2017
Posts: 48

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16 Aug 2017, 11:43
My question is why this is the case. In general assign is a verb.
Manager
Joined: 20 Jun 2016
Posts: 61

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16 Aug 2017, 11:54
Assign is a verb but assigned isn't a verb it's a participle.

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Intern
Joined: 18 May 2017
Posts: 48

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16 Aug 2017, 12:10
I assigned 1,000\$ for the concert. It is not a complete sentence? I think it is.
Re: Sentence fragment   [#permalink] 16 Aug 2017, 12:10
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