but (introduces a clause that contradicts the implications of the previous clause) / but (introduces the correct information for something that was denied in the previous clause) / but ... really; of course; no wonder (introduces the cause of the previous clause, with the implication that the result was expected given this cause) / emphasises an exclamation

(colloquial) emphasises a previous clause, adverb or adjective; really; and how

but (an instance of proclaiming an exception)

(informal) indicating an obvious but not expressed problem

(idiomatic) "absolutely not!", "but me no buts", as a response and means of interrupting another person who started a phrase with mas (“but”)

last but not least

the dogs bark, but the caravan goes on (life goes on even if people try to stop progress)

the spirit is willing but the flesh is weak (achieving something is made impossible by frailty)

you can lead a horse to water but you can't make him drink (you can show someone how to do something, but you can't make them do it)

inflection of mascar:
/ inflection of mascar: