to jackknife
Regular verb: jackknife - jackknifed- jackknifed

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
 don't I jackknife?
don't you jackknife?
doesn't he jackknife?
don't we jackknife?
don't you jackknife?
don't they jackknife? 	amI not jackknifing?
aren't you jackknifing?
isn't he jackknifing?
aren't we jackknifing?
aren't you jackknifing?
aren't they jackknifing? 	didn't I jackknife?
didn't you jackknife?
didn't he jackknife?
didn't we jackknife?
didn't you jackknife?
didn't they jackknife? 	wasn't I jackknifing?
weren't you jackknifing?
wasn't he jackknifing?
weren't we jackknifing?
weren't you jackknifing?
weren't they jackknifing? 	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
haven't I jackknifed?
haven't you jackknifed?
hasn't he jackknifed?
haven't we jackknifed?
haven't you jackknifed?
haven't they jackknifed? 	haven't I been jackknifing?
haven't you been jackknifing?
hasn't he been jackknifing?
haven't we been jackknifing?
haven't you been jackknifing?
haven't they been jackknifing? 	hadn't I jackknifed?
hadn't you jackknifed?
hadn't he jackknifed?
hadn't we jackknifed?
hadn't you jackknifed?
hadn't they jackknifed? 	hadn't I been jackknifing?
hadn't you been jackknifing?
hadn't he been jackknifing?
hadn't we been jackknifing?
hadn't you been jackknifing?
hadn't they been jackknifing? 	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
won't I jackknife?
won't you jackknife?
won't he jackknife?
won't we jackknife?
won't you jackknife?
won't they jackknife? 	won't I be jackknifing?
won't you be jackknifing?
won't he be jackknifing?
won't we be jackknifing?
won't you be jackknifing?
won't they be jackknifing? 	won't I have jackknifed?
won't you have jackknifed?
won't he have jackknifed?
won't we have jackknifed?
won't you have jackknifed?
won't they have jackknifed? 	won't I have been jackknifing?
won't you have been jackknifing?
won't he have been jackknifing?
won't we have been jackknifing?
won't you have been jackknifing?
won't they have been jackknifing? 	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
wouldn't I jackknife?
wouldn't you jackknife?
wouldn't he jackknife?
wouldn't we jackknife?
wouldn't you jackknife?
wouldn't they jackknife? 	wouldn't I be jackknifing?
wouldn't you be jackknifing?
wouldn't he be jackknifing?
wouldn't we be jackknifing?
wouldn't you be jackknifing?
wouldn't they be jackknifing? 	wouldn't I have jackknifed?
wouldn't you have jackknifed?
wouldn't he have jackknifed?
wouldn't we have jackknifed?
wouldn't you have jackknifed?
wouldn't they have jackknifed? 	wouldn't I have been jackknifing?
wouldn't you have been jackknifing?
wouldn't he have been jackknifing?
wouldn't we have been jackknifing?
wouldn't you have been jackknifing?
wouldn't they have been jackknifing? 	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to jackknife 	 	-
-
- 	 	

Participle 	
Present 	Past 	 	 	
jackknifing	jackknifed