English verb conjugation
COULD PRESCORE

Regular verb: prescore - prescored - prescored

Affirmation

Simple form	V-ing form
I could prescore you could prescore he could prescore we could prescore you could prescore they could prescore	I could be prescoring you could be prescoring he could be prescoring we could be prescoring you could be prescoring they could be prescoring
Perfect	V-ing perfect
I could have prescored you could have prescored he could have prescored we could have prescored you could have prescored they could have prescored	I could have been prescoring you could have been prescoring he could have been prescoring we could have been prescoring you could have been prescoring they could have been prescoring

Negation

Simple form	V-ing form
I couldn't prescore you couldn't prescore he couldn't prescore we couldn't prescore you couldn't prescore they couldn't prescore	I couldn't be prescoring you couldn't be prescoring he couldn't be prescoring we couldn't be prescoring you couldn't be prescoring they couldn't be prescoring
Perfect	V-ing perfect
I couldn't have prescored you couldn't have prescored he couldn't have prescored we couldn't have prescored you couldn't have prescored they couldn't have prescored	I couldn't have been prescoring you couldn't have been prescoring he couldn't have been prescoring we couldn't have been prescoring you couldn't have been prescoring they couldn't have been prescoring

Interrogative form

Simple form	V-ing form
could I prescore? could you prescore? could he prescore? could we prescore? could you prescore? could they prescore?	could I be prescoring? could you be prescoring? could he be prescoring? could we be prescoring? could you be prescoring? could they be prescoring?
Perfect	V-ing perfect
could I have prescored? could you have prescored? could he have prescored? could we have prescored? could you have prescored? could they have prescored?	could I have been prescoring? could you have been prescoring? could he have been prescoring? could we have been prescoring? could you have been prescoring? could they have been prescoring?

Interro-negative form

Simple form	V-ing form
couldn't I prescore? couldn't you prescore? couldn't he prescore? couldn't we prescore? couldn't you prescore? couldn't they prescore?	couldn't I be prescoring? couldn't you be prescoring? couldn't he be prescoring? couldn't we be prescoring? couldn't you be prescoring? couldn't they be prescoring?
Perfect	V-ing perfect
couldn't I have prescored? couldn't you have prescored? couldn't he have prescored? couldn't we have prescored? couldn't you have prescored? couldn't they have prescored?	couldn't I have been prescoring? couldn't you have been prescoring? couldn't he have been prescoring? couldn't we have been prescoring? couldn't you have been prescoring? couldn't they have been prescoring?