Warning, this verb may not exist. Conjugation is given as example.
Indicative
Present
don't I laughter? don't you laughter? doesn't he laughter? don't we laughter? don't you laughter? don't they laughter?
Present continuous
am I not laughtering? aren't you laughtering? isn't he laughtering? aren't we laughtering? aren't you laughtering? aren't they laughtering?
Preterite
didn't I laughter? didn't you laughter? didn't he laughter? didn't we laughter? didn't you laughter? didn't they laughter?
Preterite continuous
wasn't I laughtering? weren't you laughtering? wasn't he laughtering? weren't we laughtering? weren't you laughtering? weren't they laughtering?
Present perfect
haven't I laughtered? haven't you laughtered? hasn't he laughtered? haven't we laughtered? haven't you laughtered? haven't they laughtered?
Present perfect continuous
haven't I been laughtering? haven't you been laughtering? hasn't he been laughtering? haven't we been laughtering? haven't you been laughtering? haven't they been laughtering?
Pluperfect
hadn't I laughtered? hadn't you laughtered? hadn't he laughtered? hadn't we laughtered? hadn't you laughtered? hadn't they laughtered?
Pluperfect continuous
hadn't I been laughtering? hadn't you been laughtering? hadn't he been laughtering? hadn't we been laughtering? hadn't you been laughtering? hadn't they been laughtering?
Future
won't I laughter? won't you laughter? won't he laughter? won't we laughter? won't you laughter? won't they laughter?
Future continuous
won't I be laughtering? won't you be laughtering? won't he be laughtering? won't we be laughtering? won't you be laughtering? won't they be laughtering?
Future perfect
won't I have laughtered? won't you have laughtered? won't he have laughtered? won't we have laughtered? won't you have laughtered? won't they have laughtered?
Future perfect continuous
won't I have been laughtering? won't you have been laughtering? won't he have been laughtering? won't we have been laughtering? won't you have been laughtering? won't they have been laughtering?
Conditional
Present
wouldn't I laughter? wouldn't you laughter? wouldn't he laughter? wouldn't we laughter? wouldn't you laughter? wouldn't they laughter?
Present continuous
wouldn't I be laughtering? wouldn't you be laughtering? wouldn't he be laughtering? wouldn't we be laughtering? wouldn't you be laughtering? wouldn't they be laughtering?
Past
wouldn't I have laughtered? wouldn't you have laughtered? wouldn't he have laughtered? wouldn't we have laughtered? wouldn't you have laughtered? wouldn't they have laughtered?
Past continuous
wouldn't I have been laughtering? wouldn't you have been laughtering? wouldn't he have been laughtering? wouldn't we have been laughtering? wouldn't you have been laughtering? wouldn't they have been laughtering?