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 cannot worst
you cannot worst
he cannot worst
we cannot worst
you cannot worst
they cannot worst 	I cannot be worsting
you cannot be worsting
he cannot be worsting
we cannot be worsting
you cannot be worsting
they cannot be worsting	I cannot have worsted
you cannot have worsted
he cannot have worsted
we cannot have worsted
you cannot have worsted
they cannot have worsted	I cannot have been worsting
you cannot have been worsting
he cannot have been worsting
we cannot have been worsting
you cannot have been worsting
they cannot 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 I not worst?
can you not worst?
can he not worst?
can we not worst?
can you not worst?
can they not worst? 	can I not be worsting?
can you not be worsting?
can he not be worsting?
can we not be worsting?
can you not be worsting?
can they not be worsting? 	can I not have worsted?
can you not have worsted?
can he not have worsted?
can we not have worsted?
can you not have worsted?
can they not have worsted? 	can I not have been worsting?
can you not have been worsting?
can he not have been worsting?
can we not have been worsting?
can you not have been worsting?
can they not have been worsting?