English verb conjugation
COULD COW

Regular verb: cow - cowed - cowed

Affirmation

Simple form	V-ing form
I could cow you could cow he could cow we could cow you could cow they could cow	I could be cowing you could be cowing he could be cowing we could be cowing you could be cowing they could be cowing
Perfect	V-ing perfect
I could have cowed you could have cowed he could have cowed we could have cowed you could have cowed they could have cowed	I could have been cowing you could have been cowing he could have been cowing we could have been cowing you could have been cowing they could have been cowing

Negation

Simple form	V-ing form
I couldn't cow you couldn't cow he couldn't cow we couldn't cow you couldn't cow they couldn't cow	I couldn't be cowing you couldn't be cowing he couldn't be cowing we couldn't be cowing you couldn't be cowing they couldn't be cowing
Perfect	V-ing perfect
I couldn't have cowed you couldn't have cowed he couldn't have cowed we couldn't have cowed you couldn't have cowed they couldn't have cowed	I couldn't have been cowing you couldn't have been cowing he couldn't have been cowing we couldn't have been cowing you couldn't have been cowing they couldn't have been cowing

Interrogative form

Simple form	V-ing form
could I cow? could you cow? could he cow? could we cow? could you cow? could they cow?	could I be cowing? could you be cowing? could he be cowing? could we be cowing? could you be cowing? could they be cowing?
Perfect	V-ing perfect
could I have cowed? could you have cowed? could he have cowed? could we have cowed? could you have cowed? could they have cowed?	could I have been cowing? could you have been cowing? could he have been cowing? could we have been cowing? could you have been cowing? could they have been cowing?

Interro-negative form

Simple form	V-ing form
couldn't I cow? couldn't you cow? couldn't he cow? couldn't we cow? couldn't you cow? couldn't they cow?	couldn't I be cowing? couldn't you be cowing? couldn't he be cowing? couldn't we be cowing? couldn't you be cowing? couldn't they be cowing?
Perfect	V-ing perfect
couldn't I have cowed? couldn't you have cowed? couldn't he have cowed? couldn't we have cowed? couldn't you have cowed? couldn't they have cowed?	couldn't I have been cowing? couldn't you have been cowing? couldn't he have been cowing? couldn't we have been cowing? couldn't you have been cowing? couldn't they have been cowing?