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 can't exert you can't exert she can't exert we can't exert you can't exert they can't exert	I can't be exerting you can't be exerting she can't be exerting we can't be exerting you can't be exerting they can't be exerting
Perfect	V-ing perfect
I can't have exerted you can't have exerted she can't have exerted we can't have exerted you can't have exerted they can't have exerted	I can't have been exerting you can't have been exerting she can't have been exerting we can't have been exerting you can't have been exerting they can't 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't I exert? can't you exert? can't she exert? can't we exert? can't you exert? can't they exert?	can't I be exerting? can't you be exerting? can't she be exerting? can't we be exerting? can't you be exerting? can't they be exerting?
Perfect	V-ing perfect
can't I have exerted? can't you have exerted? can't she have exerted? can't we have exerted? can't you have exerted? can't they have exerted?	can't I have been exerting? can't you have been exerting? can't she have been exerting? can't we have been exerting? can't you have been exerting? can't they have been exerting?