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