0 Hi, if I'm not mistaken, "seen" and "done" are 01i 00past participles02i 00, "have seen" and "have done" are verbs in the present perfect tense, and in those verbs "have" is an 01i 00auxiliary verb02i 00. 02br 02br 00 When you learn a new verb, you need three forms of that verb, infinitive, past tense, and past participle:02br 00 eat (bare infinitive) ------------ ate (past tense) ------------ eaten (past participle)02br 00 see (bare infinitive) ------------ saw (past tense) ----------- seen (past participle)02br 00 ... 02br 02br 00 Past participles are used with auxiliary verbs (but sometimes they can also be used as adjectives):02br 00 I have eaten that stuff --------> (present perfect tense) auxiliary "to have" + past participle02br 00 That stuff was eaten ----------> (passive form) auxiliary "to be" + past participle02br 00 That stuff has been eaten ---> (passive form) auxiliary "to be" + past participle (NB: the auxiliary verb is "to be" in passive forms.
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01cite10CalifJim12cite11i10has/have/had12i10 followed by a past participle would be called 11u10auxiliary12u10 verbs. To make it even simpler, some people call them 11u10helper12u10 or 11u10helping12u10 verbs.12br
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01i10has/have/had12i10 followed by a past participle would be called 11u10auxiliary12u10 verb11b10s12b10.12blockquote10I believe I see the point of confusion. The last word (01i00
Anonymouswhat are intransitive verbsHi,