English verb conjugation
COULD VIZOR

Regular verb: vizor - vizored - vizored

Affirmation

Simple form	V-ing form
I could vizor you could vizor he could vizor we could vizor you could vizor they could vizor	I could be vizoring you could be vizoring he could be vizoring we could be vizoring you could be vizoring they could be vizoring
Perfect	V-ing perfect
I could have vizored you could have vizored he could have vizored we could have vizored you could have vizored they could have vizored	I could have been vizoring you could have been vizoring he could have been vizoring we could have been vizoring you could have been vizoring they could have been vizoring

Negation

Simple form	V-ing form
I couldn't vizor you couldn't vizor he couldn't vizor we couldn't vizor you couldn't vizor they couldn't vizor	I couldn't be vizoring you couldn't be vizoring he couldn't be vizoring we couldn't be vizoring you couldn't be vizoring they couldn't be vizoring
Perfect	V-ing perfect
I couldn't have vizored you couldn't have vizored he couldn't have vizored we couldn't have vizored you couldn't have vizored they couldn't have vizored	I couldn't have been vizoring you couldn't have been vizoring he couldn't have been vizoring we couldn't have been vizoring you couldn't have been vizoring they couldn't have been vizoring

Interrogative form

Simple form	V-ing form
could I vizor? could you vizor? could he vizor? could we vizor? could you vizor? could they vizor?	could I be vizoring? could you be vizoring? could he be vizoring? could we be vizoring? could you be vizoring? could they be vizoring?
Perfect	V-ing perfect
could I have vizored? could you have vizored? could he have vizored? could we have vizored? could you have vizored? could they have vizored?	could I have been vizoring? could you have been vizoring? could he have been vizoring? could we have been vizoring? could you have been vizoring? could they have been vizoring?

Interro-negative form

Simple form	V-ing form
couldn't I vizor? couldn't you vizor? couldn't he vizor? couldn't we vizor? couldn't you vizor? couldn't they vizor?	couldn't I be vizoring? couldn't you be vizoring? couldn't he be vizoring? couldn't we be vizoring? couldn't you be vizoring? couldn't they be vizoring?
Perfect	V-ing perfect
couldn't I have vizored? couldn't you have vizored? couldn't he have vizored? couldn't we have vizored? couldn't you have vizored? couldn't they have vizored?	couldn't I have been vizoring? couldn't you have been vizoring? couldn't he have been vizoring? couldn't we have been vizoring? couldn't you have been vizoring? couldn't they have been vizoring?