Affirmative Sentences in Present Perfect

subject+has/have + verb(past part)+compl. + time expr.

I have traveled to Costa Rica two times.

She has visited my family every year.

Negative Sentences in Present Perfect

sub+has/have +not+ verb(past part)+compl.+ time expr.

We have not gone to Metro Mall since last month.

He has not played Monopoly for three years.

Yes/No Questions in Present Perfect

has/have +sub+ verb(past part)+compl.+ time expr?

Have they swum in an olympic sized pool?

Has it been hot in Panama for the last  two weeks?

Information Questions in Present Perfect

Wh+has/have+sub+ verb(past part)+compl.+ time expr?

When have you run in a marathon?

Where has he studied English for a year?