himanshutyagi99
Could anyone pls tell me which verb should be used in the sentences which use word "ONCE".
Dear
himanshutyagi99,
I'm happy to respond.

With all due respect, my friend, what you are asking really doesn't make sense. We can use a wide variety of verbs in the English language with the word "
once," and a wide variety of tenses.
Almost any verb in the English in the past tense could be used with "
once."
Once I climbed the mountain, she respected me.
Once I started robbing banks, she respected me.
Once I could eat a whole bowl of ice cream by myself, she respected me.
Once I swam with dolphins, she respected me. etc.
We can also use "
once" with verbs in the present tense to indicate a future condition:
Once she arrives, we will go to the restaurant together.
Once they sign the peace treaty, troops will be removed from the region. None of these constructions are particular likely to be used on the GMAT. You see, the word "
once" by its very nature, denotes something that has happened or will happen only one time. Such exceptional events are often anecdotal and usually not the subject of academic analysis. I have not seen the word "
once" used in many official questions.
My friend, the best way to get a feel for how words are used in context is to read. See this blog:
https://magoosh.com/gmat/2014/how-to-im ... bal-score/Does all this make sense? Does it answer your question?
Mike