Negative infinitive

To form the negative infinitive, place not before the to- or zero infinitive:

e.g. not to worry:

• It’s hard not to worry about exams.

Examples

• I decided not to go to London.
• He asked me not to be late.
• He ought not to drive if he is tired.
• You’d better not smile at the crocodile.
• I’d rather not eat meat.