English verb conjugation
COULD STRANGLE

Regular verb: strangle - strangled - strangled

Affirmation

Simple form	V-ing form
I could strangle you could strangle she could strangle we could strangle you could strangle they could strangle	I could be strangling you could be strangling she 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 she 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 she 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 she 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 she 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 she 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 she 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 she strangle? could we strangle? could you strangle? could they strangle?	could I be strangling? could you be strangling? could she 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 she 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 she 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 she 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 she 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 she 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 she have been strangling? couldn't we have been strangling? couldn't you have been strangling? couldn't they have been strangling?