must heave
Verbo irregular: heave - heaved, hove- heaved, hove

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not heave
you must not heave
he must not heave
we must not heave
you must not heave
they must not heave 	I must not be heaving
you must not be heaving
he must not be heaving
we must not be heaving
you must not be heaving
they must not be heaving	I must not have heaved, hove
you must not have heaved, hove
he must not have heaved, hove
we must not have heaved, hove
you must not have heaved, hove
they must not have heaved, hove	I must not have been heaving
you must not have been heaving
he must not have been heaving
we must not have been heaving
you must not have been heaving
they must not have been heaving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not heave?
must you not heave?
must he not heave?
must we not heave?
must you not heave?
must they not heave? 	must I not be heaving?
must you not be heaving?
must he not be heaving?
must we not be heaving?
must you not be heaving?
must they not be heaving? 	must I not have heaved, hove?
must you not have heaved, hove?
must he not have heaved, hove?
must we not have heaved, hove?
must you not have heaved, hove?
must they not have heaved, hove? 	must I not have been heaving?
must you not have been heaving?
must he not have been heaving?
must we not have been heaving?
must you not have been heaving?
must they not have been heaving?