English verb conjugation
COULD OVEREXERT

Regular verb: overexert - overexerted - overexerted

Affirmation

Simple form	V-ing form
I could overexert you could overexert he could overexert we could overexert you could overexert they could overexert	I could be overexerting you could be overexerting he could be overexerting we could be overexerting you could be overexerting they could be overexerting
Perfect	V-ing perfect
I could have overexerted you could have overexerted he could have overexerted we could have overexerted you could have overexerted they could have overexerted	I could have been overexerting you could have been overexerting he could have been overexerting we could have been overexerting you could have been overexerting they could have been overexerting

Negation

Simple form	V-ing form
I couldn't overexert you couldn't overexert he couldn't overexert we couldn't overexert you couldn't overexert they couldn't overexert	I couldn't be overexerting you couldn't be overexerting he couldn't be overexerting we couldn't be overexerting you couldn't be overexerting they couldn't be overexerting
Perfect	V-ing perfect
I couldn't have overexerted you couldn't have overexerted he couldn't have overexerted we couldn't have overexerted you couldn't have overexerted they couldn't have overexerted	I couldn't have been overexerting you couldn't have been overexerting he couldn't have been overexerting we couldn't have been overexerting you couldn't have been overexerting they couldn't have been overexerting

Interrogative form

Simple form	V-ing form
could I overexert? could you overexert? could he overexert? could we overexert? could you overexert? could they overexert?	could I be overexerting? could you be overexerting? could he be overexerting? could we be overexerting? could you be overexerting? could they be overexerting?
Perfect	V-ing perfect
could I have overexerted? could you have overexerted? could he have overexerted? could we have overexerted? could you have overexerted? could they have overexerted?	could I have been overexerting? could you have been overexerting? could he have been overexerting? could we have been overexerting? could you have been overexerting? could they have been overexerting?

Interro-negative form

Simple form	V-ing form
couldn't I overexert? couldn't you overexert? couldn't he overexert? couldn't we overexert? couldn't you overexert? couldn't they overexert?	couldn't I be overexerting? couldn't you be overexerting? couldn't he be overexerting? couldn't we be overexerting? couldn't you be overexerting? couldn't they be overexerting?
Perfect	V-ing perfect
couldn't I have overexerted? couldn't you have overexerted? couldn't he have overexerted? couldn't we have overexerted? couldn't you have overexerted? couldn't they have overexerted?	couldn't I have been overexerting? couldn't you have been overexerting? couldn't he have been overexerting? couldn't we have been overexerting? couldn't you have been overexerting? couldn't they have been overexerting?