English verb conjugation
COULD SUBVERT

Regular verb: subvert - subverted - subverted

Affirmation

Simple form	V-ing form
I could subvert you could subvert he could subvert we could subvert you could subvert they could subvert	I could be subverting you could be subverting he could be subverting we could be subverting you could be subverting they could be subverting
Perfect	V-ing perfect
I could have subverted you could have subverted he could have subverted we could have subverted you could have subverted they could have subverted	I could have been subverting you could have been subverting he could have been subverting we could have been subverting you could have been subverting they could have been subverting

Negation

Simple form	V-ing form
I couldn't subvert you couldn't subvert he couldn't subvert we couldn't subvert you couldn't subvert they couldn't subvert	I couldn't be subverting you couldn't be subverting he couldn't be subverting we couldn't be subverting you couldn't be subverting they couldn't be subverting
Perfect	V-ing perfect
I couldn't have subverted you couldn't have subverted he couldn't have subverted we couldn't have subverted you couldn't have subverted they couldn't have subverted	I couldn't have been subverting you couldn't have been subverting he couldn't have been subverting we couldn't have been subverting you couldn't have been subverting they couldn't have been subverting

Interrogative form

Simple form	V-ing form
could I subvert? could you subvert? could he subvert? could we subvert? could you subvert? could they subvert?	could I be subverting? could you be subverting? could he be subverting? could we be subverting? could you be subverting? could they be subverting?
Perfect	V-ing perfect
could I have subverted? could you have subverted? could he have subverted? could we have subverted? could you have subverted? could they have subverted?	could I have been subverting? could you have been subverting? could he have been subverting? could we have been subverting? could you have been subverting? could they have been subverting?

Interro-negative form

Simple form	V-ing form
couldn't I subvert? couldn't you subvert? couldn't he subvert? couldn't we subvert? couldn't you subvert? couldn't they subvert?	couldn't I be subverting? couldn't you be subverting? couldn't he be subverting? couldn't we be subverting? couldn't you be subverting? couldn't they be subverting?
Perfect	V-ing perfect
couldn't I have subverted? couldn't you have subverted? couldn't he have subverted? couldn't we have subverted? couldn't you have subverted? couldn't they have subverted?	couldn't I have been subverting? couldn't you have been subverting? couldn't he have been subverting? couldn't we have been subverting? couldn't you have been subverting? couldn't they have been subverting?