PRESTAR is commonly only used to express three things:
(1) providing, supplying a service.
(2) expressing someone or something’s worthiness.
(3) expressing to pay attention.
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prestar
to provide, offer
eupresto
você, elepresta
nósprestamos
vocês, elesprestam
Complete conjugation.
providing a service: Quais serviços eles prestam? ➜ What services do they provide?
worthiness: Ele não presta. ➜ He's no good.
paying attention: Presta atenção! ➜ Pay attention!