don't I graft? don't you graft? doesn't he graft? don't we graft? don't you graft? don't they graft?
Present continuous
am I not grafting? aren't you grafting? isn't he grafting? aren't we grafting? aren't you grafting? aren't they grafting?
Preterite
didn't I graft? didn't you graft? didn't he graft? didn't we graft? didn't you graft? didn't they graft?
Preterite continuous
wasn't I grafting? weren't you grafting? wasn't he grafting? weren't we grafting? weren't you grafting? weren't they grafting?
Present perfect
haven't I grafted? haven't you grafted? hasn't he grafted? haven't we grafted? haven't you grafted? haven't they grafted?
Present perfect continuous
haven't I been grafting? haven't you been grafting? hasn't he been grafting? haven't we been grafting? haven't you been grafting? haven't they been grafting?
Pluperfect
hadn't I grafted? hadn't you grafted? hadn't he grafted? hadn't we grafted? hadn't you grafted? hadn't they grafted?
Pluperfect continuous
hadn't I been grafting? hadn't you been grafting? hadn't he been grafting? hadn't we been grafting? hadn't you been grafting? hadn't they been grafting?
Future
won't I graft? won't you graft? won't he graft? won't we graft? won't you graft? won't they graft?
Future continuous
won't I be grafting? won't you be grafting? won't he be grafting? won't we be grafting? won't you be grafting? won't they be grafting?
Future perfect
won't I have grafted? won't you have grafted? won't he have grafted? won't we have grafted? won't you have grafted? won't they have grafted?
Future perfect continuous
won't I have been grafting? won't you have been grafting? won't he have been grafting? won't we have been grafting? won't you have been grafting? won't they have been grafting?
Conditional
Present
wouldn't I graft? wouldn't you graft? wouldn't he graft? wouldn't we graft? wouldn't you graft? wouldn't they graft?
Present continuous
wouldn't I be grafting? wouldn't you be grafting? wouldn't he be grafting? wouldn't we be grafting? wouldn't you be grafting? wouldn't they be grafting?
Past
wouldn't I have grafted? wouldn't you have grafted? wouldn't he have grafted? wouldn't we have grafted? wouldn't you have grafted? wouldn't they have grafted?
Past continuous
wouldn't I have been grafting? wouldn't you have been grafting? wouldn't he have been grafting? wouldn't we have been grafting? wouldn't you have been grafting? wouldn't they have been grafting?