English verb conjugation
COULD MANTLE

Regular verb: mantle - mantled - mantled

Affirmation

Simple form	V-ing form
I could mantle you could mantle he could mantle we could mantle you could mantle they could mantle	I could be mantling you could be mantling he could be mantling we could be mantling you could be mantling they could be mantling
Perfect	V-ing perfect
I could have mantled you could have mantled he could have mantled we could have mantled you could have mantled they could have mantled	I could have been mantling you could have been mantling he could have been mantling we could have been mantling you could have been mantling they could have been mantling

Negation

Simple form	V-ing form
I could not mantle you could not mantle he could not mantle we could not mantle you could not mantle they could not mantle	I could not be mantling you could not be mantling he could not be mantling we could not be mantling you could not be mantling they could not be mantling
Perfect	V-ing perfect
I could not have mantled you could not have mantled he could not have mantled we could not have mantled you could not have mantled they could not have mantled	I could not have been mantling you could not have been mantling he could not have been mantling we could not have been mantling you could not have been mantling they could not have been mantling

Interrogative form

Simple form	V-ing form
could I mantle? could you mantle? could he mantle? could we mantle? could you mantle? could they mantle?	could I be mantling? could you be mantling? could he be mantling? could we be mantling? could you be mantling? could they be mantling?
Perfect	V-ing perfect
could I have mantled? could you have mantled? could he have mantled? could we have mantled? could you have mantled? could they have mantled?	could I have been mantling? could you have been mantling? could he have been mantling? could we have been mantling? could you have been mantling? could they have been mantling?

Interro-negative form

Simple form	V-ing form
could I not mantle? could you not mantle? could he not mantle? could we not mantle? could you not mantle? could they not mantle?	could I not be mantling? could you not be mantling? could he not be mantling? could we not be mantling? could you not be mantling? could they not be mantling?
Perfect	V-ing perfect
could I not have mantled? could you not have mantled? could he not have mantled? could we not have mantled? could you not have mantled? could they not have mantled?	could I not have been mantling? could you not have been mantling? could he not have been mantling? could we not have been mantling? could you not have been mantling? could they not have been mantling?