Grammar question!...what type of words or 'can' and 'but'?

Question

i mean are they adverbs,pronouns etc etc?????

Answer 1

Can is either a noun (i.e. a can of beans) or a verb (i.e. I can jump)

But is a conjunction. Two other conjunctions are and/or.

Answer 2

but is a conjunction

can is an auxillary verb...or a noun

An auxillary verb is a verb that accompanies the main verb in a clause and helps to make distinctions in mood, voice, aspect, and tense.

A conjunction serves to connect elements or meaning and construction within sentences