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