can exsert
Regular verb: exsert - exserted- exserted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can exsert
you can exsert
she can exsert
we can exsert
you can exsert
they can exsert 	I can be exserting
you can be exserting
she can be exserting
we can be exserting
you can be exserting
they can be exserting	I can have exserted
you can have exserted
she can have exserted
we can have exserted
you can have exserted
they can have exserted	I can have been exserting
you can have been exserting
she can have been exserting
we can have been exserting
you can have been exserting
they can have been exserting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't exsert
you can't exsert
she can't exsert
we can't exsert
you can't exsert
they can't exsert 	I can't be exserting
you can't be exserting
she can't be exserting
we can't be exserting
you can't be exserting
they can't be exserting	I can't have exserted
you can't have exserted
she can't have exserted
we can't have exserted
you can't have exserted
they can't have exserted	I can't have been exserting
you can't have been exserting
she can't have been exserting
we can't have been exserting
you can't have been exserting
they can't have been exserting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I exsert?
can you exsert?
can she exsert?
can we exsert?
can you exsert?
can they exsert? 	can I be exserting?
can you be exserting?
can she be exserting?
can we be exserting?
can you be exserting?
can they be exserting? 	can I have exserted?
can you have exserted?
can she have exserted?
can we have exserted?
can you have exserted?
can they have exserted? 	can I have been exserting?
can you have been exserting?
can she have been exserting?
can we have been exserting?
can you have been exserting?
can they have been exserting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I exsert?
can't you exsert?
can't she exsert?
can't we exsert?
can't you exsert?
can't they exsert? 	can't I be exserting?
can't you be exserting?
can't she be exserting?
can't we be exserting?
can't you be exserting?
can't they be exserting? 	can't I have exserted?
can't you have exserted?
can't she have exserted?
can't we have exserted?
can't you have exserted?
can't they have exserted? 	can't I have been exserting?
can't you have been exserting?
can't she have been exserting?
can't we have been exserting?
can't you have been exserting?
can't they have been exserting?