English verb conjugation
COULD VERBALIZE

Regular verb: verbalize - verbalized - verbalized

Affirmation

Simple form	V-ing form
I could verbalize you could verbalize she could verbalize we could verbalize you could verbalize they could verbalize	I could be verbalizing you could be verbalizing she could be verbalizing we could be verbalizing you could be verbalizing they could be verbalizing
Perfect	V-ing perfect
I could have verbalized you could have verbalized she could have verbalized we could have verbalized you could have verbalized they could have verbalized	I could have been verbalizing you could have been verbalizing she could have been verbalizing we could have been verbalizing you could have been verbalizing they could have been verbalizing

Negation

Simple form	V-ing form
I couldn't verbalize you couldn't verbalize she couldn't verbalize we couldn't verbalize you couldn't verbalize they couldn't verbalize	I couldn't be verbalizing you couldn't be verbalizing she couldn't be verbalizing we couldn't be verbalizing you couldn't be verbalizing they couldn't be verbalizing
Perfect	V-ing perfect
I couldn't have verbalized you couldn't have verbalized she couldn't have verbalized we couldn't have verbalized you couldn't have verbalized they couldn't have verbalized	I couldn't have been verbalizing you couldn't have been verbalizing she couldn't have been verbalizing we couldn't have been verbalizing you couldn't have been verbalizing they couldn't have been verbalizing

Interrogative form

Simple form	V-ing form
could I verbalize? could you verbalize? could she verbalize? could we verbalize? could you verbalize? could they verbalize?	could I be verbalizing? could you be verbalizing? could she be verbalizing? could we be verbalizing? could you be verbalizing? could they be verbalizing?
Perfect	V-ing perfect
could I have verbalized? could you have verbalized? could she have verbalized? could we have verbalized? could you have verbalized? could they have verbalized?	could I have been verbalizing? could you have been verbalizing? could she have been verbalizing? could we have been verbalizing? could you have been verbalizing? could they have been verbalizing?

Interro-negative form

Simple form	V-ing form
couldn't I verbalize? couldn't you verbalize? couldn't she verbalize? couldn't we verbalize? couldn't you verbalize? couldn't they verbalize?	couldn't I be verbalizing? couldn't you be verbalizing? couldn't she be verbalizing? couldn't we be verbalizing? couldn't you be verbalizing? couldn't they be verbalizing?
Perfect	V-ing perfect
couldn't I have verbalized? couldn't you have verbalized? couldn't she have verbalized? couldn't we have verbalized? couldn't you have verbalized? couldn't they have verbalized?	couldn't I have been verbalizing? couldn't you have been verbalizing? couldn't she have been verbalizing? couldn't we have been verbalizing? couldn't you have been verbalizing? couldn't they have been verbalizing?