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