Question

Please Give explain

which 'but' is a preposition?
A. There is no one but likes me.
B. What can we do but sit and wait.

Answer 1

Step-by-step explanation:

Neither one. Both introduce a verb.

The first one makes no sense. likes is a verb. A preposition does not introduce verbs except in the case of something like to think which is a special kind of phrase (infinitive).

The second one does, and it connects verbs. Can do connected to sit and wait.