English verb conjugation
COULD REVIVE

Regular verb: revive - revived - revived

Affirmation

Simple form	V-ing form
I could revive you could revive she could revive we could revive you could revive they could revive	I could be reviving you could be reviving she could be reviving we could be reviving you could be reviving they could be reviving
Perfect	V-ing perfect
I could have revived you could have revived she could have revived we could have revived you could have revived they could have revived	I could have been reviving you could have been reviving she could have been reviving we could have been reviving you could have been reviving they could have been reviving

Negation

Simple form	V-ing form
I couldn't revive you couldn't revive she couldn't revive we couldn't revive you couldn't revive they couldn't revive	I couldn't be reviving you couldn't be reviving she couldn't be reviving we couldn't be reviving you couldn't be reviving they couldn't be reviving
Perfect	V-ing perfect
I couldn't have revived you couldn't have revived she couldn't have revived we couldn't have revived you couldn't have revived they couldn't have revived	I couldn't have been reviving you couldn't have been reviving she couldn't have been reviving we couldn't have been reviving you couldn't have been reviving they couldn't have been reviving

Interrogative form

Simple form	V-ing form
could I revive? could you revive? could she revive? could we revive? could you revive? could they revive?	could I be reviving? could you be reviving? could she be reviving? could we be reviving? could you be reviving? could they be reviving?
Perfect	V-ing perfect
could I have revived? could you have revived? could she have revived? could we have revived? could you have revived? could they have revived?	could I have been reviving? could you have been reviving? could she have been reviving? could we have been reviving? could you have been reviving? could they have been reviving?

Interro-negative form

Simple form	V-ing form
couldn't I revive? couldn't you revive? couldn't she revive? couldn't we revive? couldn't you revive? couldn't they revive?	couldn't I be reviving? couldn't you be reviving? couldn't she be reviving? couldn't we be reviving? couldn't you be reviving? couldn't they be reviving?
Perfect	V-ing perfect
couldn't I have revived? couldn't you have revived? couldn't she have revived? couldn't we have revived? couldn't you have revived? couldn't they have revived?	couldn't I have been reviving? couldn't you have been reviving? couldn't she have been reviving? couldn't we have been reviving? couldn't you have been reviving? couldn't they have been reviving?