English verb conjugation
MUST HEAVE

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

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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