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