Hello, Niraj—and welcome to English Forums. Why which rule " present verb from + to have + -ed verb form " is put in these above mentioned sentences. -- The suspicion and the saying is now; the going and the coming happened in the recent past or are otherwise connected to the present in some way: that is when you use present tense in the main clause and perfect infinite in the dependent clause.
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nirajvishnoiin which situation we use " verb + to have + verb "The most typical usage is with a reporting verb in the passive as the first verb.