English verb conjugation
COULD WORST

Regular verb: worst - worsted - worsted

Affirmation

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

Negation

Simple form	V-ing form
I could not worst you could not worst he could not worst we could not worst you could not worst they could not worst	I could not be worsting you could not be worsting he could not be worsting we could not be worsting you could not be worsting they could not be worsting
Perfect	V-ing perfect
I could not have worsted you could not have worsted he could not have worsted we could not have worsted you could not have worsted they could not have worsted	I could not have been worsting you could not have been worsting he could not have been worsting we could not have been worsting you could not have been worsting they could not have been worsting

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not worst? could you not worst? could he not worst? could we not worst? could you not worst? could they not worst?	could I not be worsting? could you not be worsting? could he not be worsting? could we not be worsting? could you not be worsting? could they not be worsting?
Perfect	V-ing perfect
could I not have worsted? could you not have worsted? could he not have worsted? could we not have worsted? could you not have worsted? could they not have worsted?	could I not have been worsting? could you not have been worsting? could he not have been worsting? could we not have been worsting? could you not have been worsting? could they not have been worsting?