Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could abrupt act you could abrupt act he could abrupt act we could abrupt act you could abrupt act they could abrupt act
V-ing form
I could be abrupt acting you could be abrupt acting he could be abrupt acting we could be abrupt acting you could be abrupt acting they could be abrupt acting
Perfect
I could have abrupt acted you could have abrupt acted he could have abrupt acted we could have abrupt acted you could have abrupt acted they could have abrupt acted
V-ing perfect
I could have been abrupt acting you could have been abrupt acting he could have been abrupt acting we could have been abrupt acting you could have been abrupt acting they could have been abrupt acting
Negation
Simple form
I couldn't abrupt act you couldn't abrupt act he couldn't abrupt act we couldn't abrupt act you couldn't abrupt act they couldn't abrupt act
V-ing form
I couldn't be abrupt acting you couldn't be abrupt acting he couldn't be abrupt acting we couldn't be abrupt acting you couldn't be abrupt acting they couldn't be abrupt acting
Perfect
I couldn't have abrupt acted you couldn't have abrupt acted he couldn't have abrupt acted we couldn't have abrupt acted you couldn't have abrupt acted they couldn't have abrupt acted
V-ing perfect
I couldn't have been abrupt acting you couldn't have been abrupt acting he couldn't have been abrupt acting we couldn't have been abrupt acting you couldn't have been abrupt acting they couldn't have been abrupt acting
Interrogative form
Simple form
could I abrupt act? could you abrupt act? could he abrupt act? could we abrupt act? could you abrupt act? could they abrupt act?
V-ing form
could I be abrupt acting? could you be abrupt acting? could he be abrupt acting? could we be abrupt acting? could you be abrupt acting? could they be abrupt acting?
Perfect
could I have abrupt acted? could you have abrupt acted? could he have abrupt acted? could we have abrupt acted? could you have abrupt acted? could they have abrupt acted?
V-ing perfect
could I have been abrupt acting? could you have been abrupt acting? could he have been abrupt acting? could we have been abrupt acting? could you have been abrupt acting? could they have been abrupt acting?
Interro-negative form
Simple form
couldn't I abrupt act? couldn't you abrupt act? couldn't he abrupt act? couldn't we abrupt act? couldn't you abrupt act? couldn't they abrupt act?
V-ing form
couldn't I be abrupt acting? couldn't you be abrupt acting? couldn't he be abrupt acting? couldn't we be abrupt acting? couldn't you be abrupt acting? couldn't they be abrupt acting?
Perfect
couldn't I have abrupt acted? couldn't you have abrupt acted? couldn't he have abrupt acted? couldn't we have abrupt acted? couldn't you have abrupt acted? couldn't they have abrupt acted?
V-ing perfect
couldn't I have been abrupt acting? couldn't you have been abrupt acting? couldn't he have been abrupt acting? couldn't we have been abrupt acting? couldn't you have been abrupt acting? couldn't they have been abrupt acting?