English verb conjugation
COULD DEVOCALIZE

Regular verb: devocalize - devocalized - devocalized

Affirmation

Simple form	V-ing form
I could devocalize you could devocalize he could devocalize we could devocalize you could devocalize they could devocalize	I could be devocalizing you could be devocalizing he could be devocalizing we could be devocalizing you could be devocalizing they could be devocalizing
Perfect	V-ing perfect
I could have devocalized you could have devocalized he could have devocalized we could have devocalized you could have devocalized they could have devocalized	I could have been devocalizing you could have been devocalizing he could have been devocalizing we could have been devocalizing you could have been devocalizing they could have been devocalizing

Negation

Simple form	V-ing form
I could not devocalize you could not devocalize he could not devocalize we could not devocalize you could not devocalize they could not devocalize	I could not be devocalizing you could not be devocalizing he could not be devocalizing we could not be devocalizing you could not be devocalizing they could not be devocalizing
Perfect	V-ing perfect
I could not have devocalized you could not have devocalized he could not have devocalized we could not have devocalized you could not have devocalized they could not have devocalized	I could not have been devocalizing you could not have been devocalizing he could not have been devocalizing we could not have been devocalizing you could not have been devocalizing they could not have been devocalizing

Interrogative form

Simple form	V-ing form
could I devocalize? could you devocalize? could he devocalize? could we devocalize? could you devocalize? could they devocalize?	could I be devocalizing? could you be devocalizing? could he be devocalizing? could we be devocalizing? could you be devocalizing? could they be devocalizing?
Perfect	V-ing perfect
could I have devocalized? could you have devocalized? could he have devocalized? could we have devocalized? could you have devocalized? could they have devocalized?	could I have been devocalizing? could you have been devocalizing? could he have been devocalizing? could we have been devocalizing? could you have been devocalizing? could they have been devocalizing?

Interro-negative form

Simple form	V-ing form
could I not devocalize? could you not devocalize? could he not devocalize? could we not devocalize? could you not devocalize? could they not devocalize?	could I not be devocalizing? could you not be devocalizing? could he not be devocalizing? could we not be devocalizing? could you not be devocalizing? could they not be devocalizing?
Perfect	V-ing perfect
could I not have devocalized? could you not have devocalized? could he not have devocalized? could we not have devocalized? could you not have devocalized? could they not have devocalized?	could I not have been devocalizing? could you not have been devocalizing? could he not have been devocalizing? could we not have been devocalizing? could you not have been devocalizing? could they not have been devocalizing?