Simple Present Tense: Indicates facts and habits

Present Continuous Tense: Indicates action in progress now

Present Perfect Continuous Tense: Action That started in the past and is still in progress

Present Perfect: Action that is complete at the time of speaking

Past Perfect: Action completed at a specific time in the past

Examples:
Simple Present Tense: I play tennis once a week.

Present Continuous Tense: I am playing tennis now.

Present Perfect Continuous Tense: I have been playing tennis since I was 12.

Present Perfect: I have played tennis with her once.

Past Perfect: I played tennis with her when we were in Spain.