Training verb tenses Simple Present: I work I don't work Do I work? Simple Past: I worked I didn't work Did I work? Simple Future: I'll work I'll not work Will I work? Present Perfect: I have worked I haven't worked Have I worked? Past Perfect: I had worked I hadn't worked Had I worked? Future Perfect: I will have worked I won't have worked Will I have worked? Present Perfect Continuous: I have been working I haven't been working Have I been working? Past Perfect Continuous: I had been working I hadn't been working Had I been working? Future Perfect Continuous: I will have been working I won't have been working Will I have been working?