English verb conjugation
COULD CIRCUMFLEX

Regular verb: circumflex - circumflexed - circumflexed

Affirmation

Simple form	V-ing form
I could circumflex you could circumflex he could circumflex we could circumflex you could circumflex they could circumflex	I could be circumflexing you could be circumflexing he could be circumflexing we could be circumflexing you could be circumflexing they could be circumflexing
Perfect	V-ing perfect
I could have circumflexed you could have circumflexed he could have circumflexed we could have circumflexed you could have circumflexed they could have circumflexed	I could have been circumflexing you could have been circumflexing he could have been circumflexing we could have been circumflexing you could have been circumflexing they could have been circumflexing

Negation

Simple form	V-ing form
I couldn't circumflex you couldn't circumflex he couldn't circumflex we couldn't circumflex you couldn't circumflex they couldn't circumflex	I couldn't be circumflexing you couldn't be circumflexing he couldn't be circumflexing we couldn't be circumflexing you couldn't be circumflexing they couldn't be circumflexing
Perfect	V-ing perfect
I couldn't have circumflexed you couldn't have circumflexed he couldn't have circumflexed we couldn't have circumflexed you couldn't have circumflexed they couldn't have circumflexed	I couldn't have been circumflexing you couldn't have been circumflexing he couldn't have been circumflexing we couldn't have been circumflexing you couldn't have been circumflexing they couldn't have been circumflexing

Interrogative form

Simple form	V-ing form
could I circumflex? could you circumflex? could he circumflex? could we circumflex? could you circumflex? could they circumflex?	could I be circumflexing? could you be circumflexing? could he be circumflexing? could we be circumflexing? could you be circumflexing? could they be circumflexing?
Perfect	V-ing perfect
could I have circumflexed? could you have circumflexed? could he have circumflexed? could we have circumflexed? could you have circumflexed? could they have circumflexed?	could I have been circumflexing? could you have been circumflexing? could he have been circumflexing? could we have been circumflexing? could you have been circumflexing? could they have been circumflexing?

Interro-negative form

Simple form	V-ing form
couldn't I circumflex? couldn't you circumflex? couldn't he circumflex? couldn't we circumflex? couldn't you circumflex? couldn't they circumflex?	couldn't I be circumflexing? couldn't you be circumflexing? couldn't he be circumflexing? couldn't we be circumflexing? couldn't you be circumflexing? couldn't they be circumflexing?
Perfect	V-ing perfect
couldn't I have circumflexed? couldn't you have circumflexed? couldn't he have circumflexed? couldn't we have circumflexed? couldn't you have circumflexed? couldn't they have circumflexed?	couldn't I have been circumflexing? couldn't you have been circumflexing? couldn't he have been circumflexing? couldn't we have been circumflexing? couldn't you have been circumflexing? couldn't they have been circumflexing?