Is 'it' necessary in the following sentences and 'to' in the sentence 2?
1- Whether you like 'it' or not, I am going out tonight.
2- Whether he wants 'to' or not, he has to clean the room.
3- Whether you want 'it' or not, India will win the match.
4- Whether you want 'it' or not, I am your president.
5- Whether you believe 'it' or not, I am a spy.
Hi, Subhajit,
"It" and "to" are necessary in those sentences. "It" is not a dummy but a cataphoric pronoun in sentences (1) and (5): in (1), it refers to the speaker's going out, and in (5), to the speaker's being a spy. To be dummy, "it" has to merely fulfill a grammatical function, while in the mentioned sentences "it" has a referent, so it is a full pronoun there.
Now, sentences (3) and (4) are not good sentences. You should use "like" instead of "want" in those sentences. For "want" to work, you need a tacit verb, as in (2):
2- Whether he wants to (clean the room) or not, he has to clean the room.
or a tacit noun:
6- Where you want it (my advice) or not, this is my advice.
