An argument could be made for the past perfect, as you suggest. But I think it adds unnecessary verb-age. On another point, I realize that there is an age-old rule about splitting infinitives, but I think that I am lucky to still be alive sounds much better.
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nagariya I is the subject. Prevented is the verb. The baby is the direct object. From is the preposition and falling is the gerund.I’m sorry, but what does any of this have to do with the OP’s question, which was whether or not had should be used?
dishantCould you tell me why it can be used?The perfect participle (having had to wait) is a common construction in English.
dishantBut why do you think it is unnecessary?The sentence is clear and grammatical without it.
nagariyaYes, but isn't that when it is being used as a verb? This is not being used as a verb in dishant’s sentence, but as a gerund in a verbal phrase that is being used as an object.You have it wrong, I’m afraid.