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