can vex
Regular verb: vex - vexed- vexed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can vex
you can vex
he can vex
we can vex
you can vex
they can vex 	I can be vexing
you can be vexing
he can be vexing
we can be vexing
you can be vexing
they can be vexing	I can have vexed
you can have vexed
he can have vexed
we can have vexed
you can have vexed
they can have vexed	I can have been vexing
you can have been vexing
he can have been vexing
we can have been vexing
you can have been vexing
they can have been vexing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't vex
you can't vex
he can't vex
we can't vex
you can't vex
they can't vex 	I can't be vexing
you can't be vexing
he can't be vexing
we can't be vexing
you can't be vexing
they can't be vexing	I can't have vexed
you can't have vexed
he can't have vexed
we can't have vexed
you can't have vexed
they can't have vexed	I can't have been vexing
you can't have been vexing
he can't have been vexing
we can't have been vexing
you can't have been vexing
they can't have been vexing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I vex?
can you vex?
can he vex?
can we vex?
can you vex?
can they vex? 	can I be vexing?
can you be vexing?
can he be vexing?
can we be vexing?
can you be vexing?
can they be vexing? 	can I have vexed?
can you have vexed?
can he have vexed?
can we have vexed?
can you have vexed?
can they have vexed? 	can I have been vexing?
can you have been vexing?
can he have been vexing?
can we have been vexing?
can you have been vexing?
can they have been vexing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I vex?
can't you vex?
can't he vex?
can't we vex?
can't you vex?
can't they vex? 	can't I be vexing?
can't you be vexing?
can't he be vexing?
can't we be vexing?
can't you be vexing?
can't they be vexing? 	can't I have vexed?
can't you have vexed?
can't he have vexed?
can't we have vexed?
can't you have vexed?
can't they have vexed? 	can't I have been vexing?
can't you have been vexing?
can't he have been vexing?
can't we have been vexing?
can't you have been vexing?
can't they have been vexing?