English verb conjugation
COULD STRANGLE

Regular verb: strangle - strangled - strangled

Affirmation

Simple form	V-ing form
I could strangle you could strangle he could strangle we could strangle you could strangle they could strangle	I could be strangling you could be strangling he could be strangling we could be strangling you could be strangling they could be strangling
Perfect	V-ing perfect
I could have strangled you could have strangled he could have strangled we could have strangled you could have strangled they could have strangled	I could have been strangling you could have been strangling he could have been strangling we could have been strangling you could have been strangling they could have been strangling

Negation

Simple form	V-ing form
I couldn't strangle you couldn't strangle he couldn't strangle we couldn't strangle you couldn't strangle they couldn't strangle	I couldn't be strangling you couldn't be strangling he couldn't be strangling we couldn't be strangling you couldn't be strangling they couldn't be strangling
Perfect	V-ing perfect
I couldn't have strangled you couldn't have strangled he couldn't have strangled we couldn't have strangled you couldn't have strangled they couldn't have strangled	I couldn't have been strangling you couldn't have been strangling he couldn't have been strangling we couldn't have been strangling you couldn't have been strangling they couldn't have been strangling

Interrogative form

Simple form	V-ing form
could I strangle? could you strangle? could he strangle? could we strangle? could you strangle? could they strangle?	could I be strangling? could you be strangling? could he be strangling? could we be strangling? could you be strangling? could they be strangling?
Perfect	V-ing perfect
could I have strangled? could you have strangled? could he have strangled? could we have strangled? could you have strangled? could they have strangled?	could I have been strangling? could you have been strangling? could he have been strangling? could we have been strangling? could you have been strangling? could they have been strangling?

Interro-negative form

Simple form	V-ing form
couldn't I strangle? couldn't you strangle? couldn't he strangle? couldn't we strangle? couldn't you strangle? couldn't they strangle?	couldn't I be strangling? couldn't you be strangling? couldn't he be strangling? couldn't we be strangling? couldn't you be strangling? couldn't they be strangling?
Perfect	V-ing perfect
couldn't I have strangled? couldn't you have strangled? couldn't he have strangled? couldn't we have strangled? couldn't you have strangled? couldn't they have strangled?	couldn't I have been strangling? couldn't you have been strangling? couldn't he have been strangling? couldn't we have been strangling? couldn't you have been strangling? couldn't they have been strangling?