I could revitalize you could revitalize he could revitalize we could revitalize you could revitalize they could revitalize
V-ing form
I could be revitalizing you could be revitalizing he could be revitalizing we could be revitalizing you could be revitalizing they could be revitalizing
Perfect
I could have revitalized you could have revitalized he could have revitalized we could have revitalized you could have revitalized they could have revitalized
V-ing perfect
I could have been revitalizing you could have been revitalizing he could have been revitalizing we could have been revitalizing you could have been revitalizing they could have been revitalizing
Negation
Simple form
I could not revitalize you could not revitalize he could not revitalize we could not revitalize you could not revitalize they could not revitalize
V-ing form
I could not be revitalizing you could not be revitalizing he could not be revitalizing we could not be revitalizing you could not be revitalizing they could not be revitalizing
Perfect
I could not have revitalized you could not have revitalized he could not have revitalized we could not have revitalized you could not have revitalized they could not have revitalized
V-ing perfect
I could not have been revitalizing you could not have been revitalizing he could not have been revitalizing we could not have been revitalizing you could not have been revitalizing they could not have been revitalizing
Interrogative form
Simple form
could I revitalize? could you revitalize? could he revitalize? could we revitalize? could you revitalize? could they revitalize?
V-ing form
could I be revitalizing? could you be revitalizing? could he be revitalizing? could we be revitalizing? could you be revitalizing? could they be revitalizing?
Perfect
could I have revitalized? could you have revitalized? could he have revitalized? could we have revitalized? could you have revitalized? could they have revitalized?
V-ing perfect
could I have been revitalizing? could you have been revitalizing? could he have been revitalizing? could we have been revitalizing? could you have been revitalizing? could they have been revitalizing?
Interro-negative form
Simple form
could I not revitalize? could you not revitalize? could he not revitalize? could we not revitalize? could you not revitalize? could they not revitalize?
V-ing form
could I not be revitalizing? could you not be revitalizing? could he not be revitalizing? could we not be revitalizing? could you not be revitalizing? could they not be revitalizing?
Perfect
could I not have revitalized? could you not have revitalized? could he not have revitalized? could we not have revitalized? could you not have revitalized? could they not have revitalized?
V-ing perfect
could I not have been revitalizing? could you not have been revitalizing? could he not have been revitalizing? could we not have been revitalizing? could you not have been revitalizing? could they not have been revitalizing?