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