English verb conjugation
COULD METALIZE

Regular verb: metalize - metalized - metalized

Affirmation

Simple form	V-ing form
I could metalize you could metalize she could metalize we could metalize you could metalize they could metalize	I could be metalizing you could be metalizing she could be metalizing we could be metalizing you could be metalizing they could be metalizing
Perfect	V-ing perfect
I could have metalized you could have metalized she could have metalized we could have metalized you could have metalized they could have metalized	I could have been metalizing you could have been metalizing she could have been metalizing we could have been metalizing you could have been metalizing they could have been metalizing

Negation

Simple form	V-ing form
I couldn't metalize you couldn't metalize she couldn't metalize we couldn't metalize you couldn't metalize they couldn't metalize	I couldn't be metalizing you couldn't be metalizing she couldn't be metalizing we couldn't be metalizing you couldn't be metalizing they couldn't be metalizing
Perfect	V-ing perfect
I couldn't have metalized you couldn't have metalized she couldn't have metalized we couldn't have metalized you couldn't have metalized they couldn't have metalized	I couldn't have been metalizing you couldn't have been metalizing she couldn't have been metalizing we couldn't have been metalizing you couldn't have been metalizing they couldn't have been metalizing

Interrogative form

Simple form	V-ing form
could I metalize? could you metalize? could she metalize? could we metalize? could you metalize? could they metalize?	could I be metalizing? could you be metalizing? could she be metalizing? could we be metalizing? could you be metalizing? could they be metalizing?
Perfect	V-ing perfect
could I have metalized? could you have metalized? could she have metalized? could we have metalized? could you have metalized? could they have metalized?	could I have been metalizing? could you have been metalizing? could she have been metalizing? could we have been metalizing? could you have been metalizing? could they have been metalizing?

Interro-negative form

Simple form	V-ing form
couldn't I metalize? couldn't you metalize? couldn't she metalize? couldn't we metalize? couldn't you metalize? couldn't they metalize?	couldn't I be metalizing? couldn't you be metalizing? couldn't she be metalizing? couldn't we be metalizing? couldn't you be metalizing? couldn't they be metalizing?
Perfect	V-ing perfect
couldn't I have metalized? couldn't you have metalized? couldn't she have metalized? couldn't we have metalized? couldn't you have metalized? couldn't they have metalized?	couldn't I have been metalizing? couldn't you have been metalizing? couldn't she have been metalizing? couldn't we have been metalizing? couldn't you have been metalizing? couldn't they have been metalizing?