1. 'What you have to do is review everything on days that you had had english lessons' <br/><br/><br/> 2. 'What you have to do is review everything on days that you have english lessons' <br/><br/><br/> 3. 'What you have to do is review everything on days that you have had english lessons' <br/><br/><br/><br/> Can you guys please tell me which of the three up there is the best sounding? and which <br/><br/> ones are not even grammatical?