English verb conjugation
COULD VOWELIZE

Regular verb: vowelize - vowelized - vowelized

Affirmation

Simple form	V-ing form
I could vowelize you could vowelize he could vowelize we could vowelize you could vowelize they could vowelize	I could be vowelizing you could be vowelizing he could be vowelizing we could be vowelizing you could be vowelizing they could be vowelizing
Perfect	V-ing perfect
I could have vowelized you could have vowelized he could have vowelized we could have vowelized you could have vowelized they could have vowelized	I could have been vowelizing you could have been vowelizing he could have been vowelizing we could have been vowelizing you could have been vowelizing they could have been vowelizing

Negation

Simple form	V-ing form
I could not vowelize you could not vowelize he could not vowelize we could not vowelize you could not vowelize they could not vowelize	I could not be vowelizing you could not be vowelizing he could not be vowelizing we could not be vowelizing you could not be vowelizing they could not be vowelizing
Perfect	V-ing perfect
I could not have vowelized you could not have vowelized he could not have vowelized we could not have vowelized you could not have vowelized they could not have vowelized	I could not have been vowelizing you could not have been vowelizing he could not have been vowelizing we could not have been vowelizing you could not have been vowelizing they could not have been vowelizing

Interrogative form

Simple form	V-ing form
could I vowelize? could you vowelize? could he vowelize? could we vowelize? could you vowelize? could they vowelize?	could I be vowelizing? could you be vowelizing? could he be vowelizing? could we be vowelizing? could you be vowelizing? could they be vowelizing?
Perfect	V-ing perfect
could I have vowelized? could you have vowelized? could he have vowelized? could we have vowelized? could you have vowelized? could they have vowelized?	could I have been vowelizing? could you have been vowelizing? could he have been vowelizing? could we have been vowelizing? could you have been vowelizing? could they have been vowelizing?

Interro-negative form

Simple form	V-ing form
could I not vowelize? could you not vowelize? could he not vowelize? could we not vowelize? could you not vowelize? could they not vowelize?	could I not be vowelizing? could you not be vowelizing? could he not be vowelizing? could we not be vowelizing? could you not be vowelizing? could they not be vowelizing?
Perfect	V-ing perfect
could I not have vowelized? could you not have vowelized? could he not have vowelized? could we not have vowelized? could you not have vowelized? could they not have vowelized?	could I not have been vowelizing? could you not have been vowelizing? could he not have been vowelizing? could we not have been vowelizing? could you not have been vowelizing? could they not have been vowelizing?