Cuando se aplica has y cuando have en prente perfecto?

if u did want it translated it means

Explanation:

definition

when you apply and when have you in perfect present?

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is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it