Take a look at the following sentences, please.

1. I am doing this because I was asked to.

2. Just do it as you were told to.

3. You may go home if you want to.

4. You may buy a new car now if you wish to.

Which of the tos are must-be-used items and which are optional? Grammatically, all the sentences above should maintain 'to' but in reality I somehow feel that sentence 1 should keep 'to', while the other tos are all optional. Is there anything that I should be aware of?

Best regards,
They all seem optional to me, Komountain, but it may be in the mind of the beholder.
Interesting...I find #2 rings oddly, without the "to".

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Thank you, MM.


When I was learning English decades ago, my teachers used to say, "Don't forget to use 'to'. Unless you use it, you are wrong." This 'sermon' has been dinned into me and has been seemingly supported by grammar books or other writings. Occasionally, however, I have come across the sentences where 'to' is missing. Confusion took hold of me, leading me to ask. Now that you have clearly answered my question, I think that this 'to' is going through a transition, an inevitability in the life of a language.
 MrPedantic's reply was promoted to an answer.
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Yes, a bit. It would be better without the it.