English verb conjugation
COULD DEHISCE

Regular verb: dehisce - dehisced - dehisced

Affirmation

Simple form	V-ing form
I could dehisce you could dehisce he could dehisce we could dehisce you could dehisce they could dehisce	I could be dehiscing you could be dehiscing he could be dehiscing we could be dehiscing you could be dehiscing they could be dehiscing
Perfect	V-ing perfect
I could have dehisced you could have dehisced he could have dehisced we could have dehisced you could have dehisced they could have dehisced	I could have been dehiscing you could have been dehiscing he could have been dehiscing we could have been dehiscing you could have been dehiscing they could have been dehiscing

Negation

Simple form	V-ing form
I couldn't dehisce you couldn't dehisce he couldn't dehisce we couldn't dehisce you couldn't dehisce they couldn't dehisce	I couldn't be dehiscing you couldn't be dehiscing he couldn't be dehiscing we couldn't be dehiscing you couldn't be dehiscing they couldn't be dehiscing
Perfect	V-ing perfect
I couldn't have dehisced you couldn't have dehisced he couldn't have dehisced we couldn't have dehisced you couldn't have dehisced they couldn't have dehisced	I couldn't have been dehiscing you couldn't have been dehiscing he couldn't have been dehiscing we couldn't have been dehiscing you couldn't have been dehiscing they couldn't have been dehiscing

Interrogative form

Simple form	V-ing form
could I dehisce? could you dehisce? could he dehisce? could we dehisce? could you dehisce? could they dehisce?	could I be dehiscing? could you be dehiscing? could he be dehiscing? could we be dehiscing? could you be dehiscing? could they be dehiscing?
Perfect	V-ing perfect
could I have dehisced? could you have dehisced? could he have dehisced? could we have dehisced? could you have dehisced? could they have dehisced?	could I have been dehiscing? could you have been dehiscing? could he have been dehiscing? could we have been dehiscing? could you have been dehiscing? could they have been dehiscing?

Interro-negative form

Simple form	V-ing form
couldn't I dehisce? couldn't you dehisce? couldn't he dehisce? couldn't we dehisce? couldn't you dehisce? couldn't they dehisce?	couldn't I be dehiscing? couldn't you be dehiscing? couldn't he be dehiscing? couldn't we be dehiscing? couldn't you be dehiscing? couldn't they be dehiscing?
Perfect	V-ing perfect
couldn't I have dehisced? couldn't you have dehisced? couldn't he have dehisced? couldn't we have dehisced? couldn't you have dehisced? couldn't they have dehisced?	couldn't I have been dehiscing? couldn't you have been dehiscing? couldn't he have been dehiscing? couldn't we have been dehiscing? couldn't you have been dehiscing? couldn't they have been dehiscing?