In Predicates^x, Past perfect^x, Present simple^x

Mister Micawber wrote:Future Simple (I will sit)Future Continuous/Progressive (I will be sitting)Future Perfect (I will have sat")Present Simple (I sit)Past Simple (I sat)Past Continuous/Progressive (I was sitting)Past Perfect (I had sat)Past Perfect Continuous/Progressive (I had been...

Future Simple (I will sit)Future Continuous/Progressive (I will be sitting)Future Perfect (I will have sat")Present Simple (I sit)Past Simple (I sat)Past Continuous/Progressive (I was sitting)Past Perfect (I had sat)Past Perfect Continuous/Progressive (I had been sitting)Any I've missed? -- See...

Jack112 wrote: Sorry for my lack of understanding. Could you give me a few more examples as to how to distinguish between them? 1. I have never had more girlfriends than I have now. (Correct) 2. I have never had more girlfriends than I do now. (Is this one correct as well? How do I...