1. Present Present Simple: I walk Present Continuous: I am walking Present Perfect: I have walked Present Perfect Continuous: I have been walking 2. Past Past Simple: I walked Past Continuous: I was walking Past Perfect: I had walked Past Perfect Continuous: I had been walking 3. Future Future Simple: I will walk Future Continuous: I will be walking Future Perfect: I will have walked Future Perfect Continuous: I will have been walking
Present Simple: I walk
Present Continuous: I am walking
Present Perfect: I have walked
Present Perfect Continuous: I have been walking
2. Past
Past Simple: I walked
Past Continuous: I was walking
Past Perfect: I had walked
Past Perfect Continuous: I had been walking
3. Future
Future Simple: I will walk
Future Continuous: I will be walking
Future Perfect: I will have walked
Future Perfect Continuous: I will have been walking