can worst
Regular verb: worst - worsted- worsted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can worst
you can worst
he can worst
we can worst
you can worst
they can worst 	I can be worsting
you can be worsting
he can be worsting
we can be worsting
you can be worsting
they can be worsting	I can have worsted
you can have worsted
he can have worsted
we can have worsted
you can have worsted
they can have worsted	I can have been worsting
you can have been worsting
he can have been worsting
we can have been worsting
you can have been worsting
they can have been worsting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't worst
you can't worst
he can't worst
we can't worst
you can't worst
they can't worst 	I can't be worsting
you can't be worsting
he can't be worsting
we can't be worsting
you can't be worsting
they can't be worsting	I can't have worsted
you can't have worsted
he can't have worsted
we can't have worsted
you can't have worsted
they can't have worsted	I can't have been worsting
you can't have been worsting
he can't have been worsting
we can't have been worsting
you can't have been worsting
they can't have been worsting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I worst?
can you worst?
can he worst?
can we worst?
can you worst?
can they worst? 	can I be worsting?
can you be worsting?
can he be worsting?
can we be worsting?
can you be worsting?
can they be worsting? 	can I have worsted?
can you have worsted?
can he have worsted?
can we have worsted?
can you have worsted?
can they have worsted? 	can I have been worsting?
can you have been worsting?
can he have been worsting?
can we have been worsting?
can you have been worsting?
can they have been worsting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I worst?
can't you worst?
can't he worst?
can't we worst?
can't you worst?
can't they worst? 	can't I be worsting?
can't you be worsting?
can't he be worsting?
can't we be worsting?
can't you be worsting?
can't they be worsting? 	can't I have worsted?
can't you have worsted?
can't he have worsted?
can't we have worsted?
can't you have worsted?
can't they have worsted? 	can't I have been worsting?
can't you have been worsting?
can't he have been worsting?
can't we have been worsting?
can't you have been worsting?
can't they have been worsting?