English verb conjugation
COULD PREVACCINATE

Regular verb: prevaccinate - prevaccinated - prevaccinated

Affirmation

Simple form	V-ing form
I could prevaccinate you could prevaccinate he could prevaccinate we could prevaccinate you could prevaccinate they could prevaccinate	I could be prevaccinating you could be prevaccinating he could be prevaccinating we could be prevaccinating you could be prevaccinating they could be prevaccinating
Perfect	V-ing perfect
I could have prevaccinated you could have prevaccinated he could have prevaccinated we could have prevaccinated you could have prevaccinated they could have prevaccinated	I could have been prevaccinating you could have been prevaccinating he could have been prevaccinating we could have been prevaccinating you could have been prevaccinating they could have been prevaccinating

Negation

Simple form	V-ing form
I couldn't prevaccinate you couldn't prevaccinate he couldn't prevaccinate we couldn't prevaccinate you couldn't prevaccinate they couldn't prevaccinate	I couldn't be prevaccinating you couldn't be prevaccinating he couldn't be prevaccinating we couldn't be prevaccinating you couldn't be prevaccinating they couldn't be prevaccinating
Perfect	V-ing perfect
I couldn't have prevaccinated you couldn't have prevaccinated he couldn't have prevaccinated we couldn't have prevaccinated you couldn't have prevaccinated they couldn't have prevaccinated	I couldn't have been prevaccinating you couldn't have been prevaccinating he couldn't have been prevaccinating we couldn't have been prevaccinating you couldn't have been prevaccinating they couldn't have been prevaccinating

Interrogative form

Simple form	V-ing form
could I prevaccinate? could you prevaccinate? could he prevaccinate? could we prevaccinate? could you prevaccinate? could they prevaccinate?	could I be prevaccinating? could you be prevaccinating? could he be prevaccinating? could we be prevaccinating? could you be prevaccinating? could they be prevaccinating?
Perfect	V-ing perfect
could I have prevaccinated? could you have prevaccinated? could he have prevaccinated? could we have prevaccinated? could you have prevaccinated? could they have prevaccinated?	could I have been prevaccinating? could you have been prevaccinating? could he have been prevaccinating? could we have been prevaccinating? could you have been prevaccinating? could they have been prevaccinating?

Interro-negative form

Simple form	V-ing form
couldn't I prevaccinate? couldn't you prevaccinate? couldn't he prevaccinate? couldn't we prevaccinate? couldn't you prevaccinate? couldn't they prevaccinate?	couldn't I be prevaccinating? couldn't you be prevaccinating? couldn't he be prevaccinating? couldn't we be prevaccinating? couldn't you be prevaccinating? couldn't they be prevaccinating?
Perfect	V-ing perfect
couldn't I have prevaccinated? couldn't you have prevaccinated? couldn't he have prevaccinated? couldn't we have prevaccinated? couldn't you have prevaccinated? couldn't they have prevaccinated?	couldn't I have been prevaccinating? couldn't you have been prevaccinating? couldn't he have been prevaccinating? couldn't we have been prevaccinating? couldn't you have been prevaccinating? couldn't they have been prevaccinating?