Your sentence
Hay+un+problema.
Words in this sentence
haber
to have; forms the perfect aspect; to hold, to possess; to exist; there be; “there is”, “there are” (hay); “there was”, “there were” (hubo/había); to have to; to be necessary; used to denote a past obligation
Verb
problema
problem, issue, challenge (a difficulty or obstacle that has to be dealt with); trouble (in the singular or in the plural); question, dilemma, conundrum; condition (illness)
Noun