1148: Omitting 'That' Jan 30, 2018

English tends to be fairly flexible about word-order, but in terms of clauses that begin with 'that', it is often acceptable to omit it entirely. For example, in the sentence "Jane saw (that) Jim left", the word 'that' is optional. This is not to say that the grammar lends itself to only being optional, but that is the case with indirect perception, as seen before. Nevertheless, in the sentence, "Jane saw Jim leave", which is direct perception instead, the phrase cannot take 'that'. Sometimes, the reason for omitting 'that' is because it is also used as a demonstrative adjective and demonstrative pronoun, and so there are possible sentences like "that dog that that man had..." which gets rather clunky, though often 'that' can be replaced by 'the' or 'it', depending on the context.

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