must sleave
Verbo regular: sleave - sleaved- sleaved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must sleave
you must sleave
he must sleave
we must sleave
you must sleave
they must sleave 	I must be sleaving
you must be sleaving
he must be sleaving
we must be sleaving
you must be sleaving
they must be sleaving	I must have sleaved
you must have sleaved
he must have sleaved
we must have sleaved
you must have sleaved
they must have sleaved	I must have been sleaving
you must have been sleaving
he must have been sleaving
we must have been sleaving
you must have been sleaving
they must have been sleaving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not sleave
you must not sleave
he must not sleave
we must not sleave
you must not sleave
they must not sleave 	I must not be sleaving
you must not be sleaving
he must not be sleaving
we must not be sleaving
you must not be sleaving
they must not be sleaving	I must not have sleaved
you must not have sleaved
he must not have sleaved
we must not have sleaved
you must not have sleaved
they must not have sleaved	I must not have been sleaving
you must not have been sleaving
he must not have been sleaving
we must not have been sleaving
you must not have been sleaving
they must not have been sleaving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I sleave?
must you sleave?
must he sleave?
must we sleave?
must you sleave?
must they sleave? 	must I be sleaving?
must you be sleaving?
must he be sleaving?
must we be sleaving?
must you be sleaving?
must they be sleaving? 	must I have sleaved?
must you have sleaved?
must he have sleaved?
must we have sleaved?
must you have sleaved?
must they have sleaved? 	must I have been sleaving?
must you have been sleaving?
must he have been sleaving?
must we have been sleaving?
must you have been sleaving?
must they have been sleaving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not sleave?
must you not sleave?
must he not sleave?
must we not sleave?
must you not sleave?
must they not sleave? 	must I not be sleaving?
must you not be sleaving?
must he not be sleaving?
must we not be sleaving?
must you not be sleaving?
must they not be sleaving? 	must I not have sleaved?
must you not have sleaved?
must he not have sleaved?
must we not have sleaved?
must you not have sleaved?
must they not have sleaved? 	must I not have been sleaving?
must you not have been sleaving?
must he not have been sleaving?
must we not have been sleaving?
must you not have been sleaving?
must they not have been sleaving?