What makes the sentences below ungrammatical?

What makes the sentences below ungrammatical?

1) Nobody knew exactly what Ed has been doing yesterday.

2) More information on the escaped criminial have now become available.

Comments

  • DavidCrosbieDavidCrosbie ✭✭✭

    @lflower462

    1) Nobody knew exactly what Ed has been doing yesterday.

    This is ungrammatical because PRESENT PERFECT forms in English are used to locate the action or process in a period UP TO NOW. The word yesterday denotes a period BEFORE NOW.

    2) More information on the escaped criminial have now become available.

    This is ungrammatical — for the very simple reason that information is SINGULAR.
    Indeed there is no such word in English as the PLURAl informations.
    Finite verb forms with have — including the PRESNT PERFECT — show CONCORD (aka AGREEMENT) with the SUBJECT.
    The SUBJECT is not I or we or you (so-called FIRST PERSON or SECOND PERSON).
    So have can only follow if the SUBJECT is PLURAL

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