English verb conjugation
COULD HEAVE

Irregular verb: heave - heaved, hove - heaved, hove

Affirmation

Simple form	V-ing form
I could heave you could heave he could heave we could heave you could heave they could heave	I could be heaving you could be heaving he could be heaving we could be heaving you could be heaving they could be heaving
Perfect	V-ing perfect
I could have heaved, hove you could have heaved, hove he could have heaved, hove we could have heaved, hove you could have heaved, hove they could have heaved, hove	I could have been heaving you could have been heaving he could have been heaving we could have been heaving you could have been heaving they could have been heaving

Negation

Simple form	V-ing form
I couldn't heave you couldn't heave he couldn't heave we couldn't heave you couldn't heave they couldn't heave	I couldn't be heaving you couldn't be heaving he couldn't be heaving we couldn't be heaving you couldn't be heaving they couldn't be heaving
Perfect	V-ing perfect
I couldn't have heaved, hove you couldn't have heaved, hove he couldn't have heaved, hove we couldn't have heaved, hove you couldn't have heaved, hove they couldn't have heaved, hove	I couldn't have been heaving you couldn't have been heaving he couldn't have been heaving we couldn't have been heaving you couldn't have been heaving they couldn't have been heaving

Interrogative form

Simple form	V-ing form
could I heave? could you heave? could he heave? could we heave? could you heave? could they heave?	could I be heaving? could you be heaving? could he be heaving? could we be heaving? could you be heaving? could they be heaving?
Perfect	V-ing perfect
could I have heaved, hove? could you have heaved, hove? could he have heaved, hove? could we have heaved, hove? could you have heaved, hove? could they have heaved, hove?	could I have been heaving? could you have been heaving? could he have been heaving? could we have been heaving? could you have been heaving? could they have been heaving?

Interro-negative form

Simple form	V-ing form
couldn't I heave? couldn't you heave? couldn't he heave? couldn't we heave? couldn't you heave? couldn't they heave?	couldn't I be heaving? couldn't you be heaving? couldn't he be heaving? couldn't we be heaving? couldn't you be heaving? couldn't they be heaving?
Perfect	V-ing perfect
couldn't I have heaved, hove? couldn't you have heaved, hove? couldn't he have heaved, hove? couldn't we have heaved, hove? couldn't you have heaved, hove? couldn't they have heaved, hove?	couldn't I have been heaving? couldn't you have been heaving? couldn't he have been heaving? couldn't we have been heaving? couldn't you have been heaving? couldn't they have been heaving?