English verb conjugation
COULD INTENERATE

Regular verb: intenerate - intenerated - intenerated

Affirmation

Simple form	V-ing form
I could intenerate you could intenerate he could intenerate we could intenerate you could intenerate they could intenerate	I could be intenerating you could be intenerating he could be intenerating we could be intenerating you could be intenerating they could be intenerating
Perfect	V-ing perfect
I could have intenerated you could have intenerated he could have intenerated we could have intenerated you could have intenerated they could have intenerated	I could have been intenerating you could have been intenerating he could have been intenerating we could have been intenerating you could have been intenerating they could have been intenerating

Negation

Simple form	V-ing form
I couldn't intenerate you couldn't intenerate he couldn't intenerate we couldn't intenerate you couldn't intenerate they couldn't intenerate	I couldn't be intenerating you couldn't be intenerating he couldn't be intenerating we couldn't be intenerating you couldn't be intenerating they couldn't be intenerating
Perfect	V-ing perfect
I couldn't have intenerated you couldn't have intenerated he couldn't have intenerated we couldn't have intenerated you couldn't have intenerated they couldn't have intenerated	I couldn't have been intenerating you couldn't have been intenerating he couldn't have been intenerating we couldn't have been intenerating you couldn't have been intenerating they couldn't have been intenerating

Interrogative form

Simple form	V-ing form
could I intenerate? could you intenerate? could he intenerate? could we intenerate? could you intenerate? could they intenerate?	could I be intenerating? could you be intenerating? could he be intenerating? could we be intenerating? could you be intenerating? could they be intenerating?
Perfect	V-ing perfect
could I have intenerated? could you have intenerated? could he have intenerated? could we have intenerated? could you have intenerated? could they have intenerated?	could I have been intenerating? could you have been intenerating? could he have been intenerating? could we have been intenerating? could you have been intenerating? could they have been intenerating?

Interro-negative form

Simple form	V-ing form
couldn't I intenerate? couldn't you intenerate? couldn't he intenerate? couldn't we intenerate? couldn't you intenerate? couldn't they intenerate?	couldn't I be intenerating? couldn't you be intenerating? couldn't he be intenerating? couldn't we be intenerating? couldn't you be intenerating? couldn't they be intenerating?
Perfect	V-ing perfect
couldn't I have intenerated? couldn't you have intenerated? couldn't he have intenerated? couldn't we have intenerated? couldn't you have intenerated? couldn't they have intenerated?	couldn't I have been intenerating? couldn't you have been intenerating? couldn't he have been intenerating? couldn't we have been intenerating? couldn't you have been intenerating? couldn't they have been intenerating?