English verb conjugation
CAN EXERT

Regular verb: exert - exerted - exerted

Affirmation

Simple form	V-ing form
I can exert you can exert she can exert we can exert you can exert they can exert	I can be exerting you can be exerting she can be exerting we can be exerting you can be exerting they can be exerting
Perfect	V-ing perfect
I can have exerted you can have exerted she can have exerted we can have exerted you can have exerted they can have exerted	I can have been exerting you can have been exerting she can have been exerting we can have been exerting you can have been exerting they can have been exerting

Negation

Simple form	V-ing form
I cannot exert you cannot exert she cannot exert we cannot exert you cannot exert they cannot exert	I cannot be exerting you cannot be exerting she cannot be exerting we cannot be exerting you cannot be exerting they cannot be exerting
Perfect	V-ing perfect
I cannot have exerted you cannot have exerted she cannot have exerted we cannot have exerted you cannot have exerted they cannot have exerted	I cannot have been exerting you cannot have been exerting she cannot have been exerting we cannot have been exerting you cannot have been exerting they cannot have been exerting

Interrogative form

Simple form	V-ing form
can I exert? can you exert? can she exert? can we exert? can you exert? can they exert?	can I be exerting? can you be exerting? can she be exerting? can we be exerting? can you be exerting? can they be exerting?
Perfect	V-ing perfect
can I have exerted? can you have exerted? can she have exerted? can we have exerted? can you have exerted? can they have exerted?	can I have been exerting? can you have been exerting? can she have been exerting? can we have been exerting? can you have been exerting? can they have been exerting?

Interro-negative form

Simple form	V-ing form
can I not exert? can you not exert? can she not exert? can we not exert? can you not exert? can they not exert?	can I not be exerting? can you not be exerting? can she not be exerting? can we not be exerting? can you not be exerting? can they not be exerting?
Perfect	V-ing perfect
can I not have exerted? can you not have exerted? can she not have exerted? can we not have exerted? can you not have exerted? can they not have exerted?	can I not have been exerting? can you not have been exerting? can she not have been exerting? can we not have been exerting? can you not have been exerting? can they not have been exerting?