must surcease
Verbo regular: surcease - surceased- surceased

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must surcease
you must surcease
she must surcease
we must surcease
you must surcease
they must surcease 	I must be surceasing
you must be surceasing
she must be surceasing
we must be surceasing
you must be surceasing
they must be surceasing	I must have surceased
you must have surceased
she must have surceased
we must have surceased
you must have surceased
they must have surceased	I must have been surceasing
you must have been surceasing
she must have been surceasing
we must have been surceasing
you must have been surceasing
they must have been surceasing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not surcease
you must not surcease
she must not surcease
we must not surcease
you must not surcease
they must not surcease 	I must not be surceasing
you must not be surceasing
she must not be surceasing
we must not be surceasing
you must not be surceasing
they must not be surceasing	I must not have surceased
you must not have surceased
she must not have surceased
we must not have surceased
you must not have surceased
they must not have surceased	I must not have been surceasing
you must not have been surceasing
she must not have been surceasing
we must not have been surceasing
you must not have been surceasing
they must not have been surceasing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I surcease?
must you surcease?
must she surcease?
must we surcease?
must you surcease?
must they surcease? 	must I be surceasing?
must you be surceasing?
must she be surceasing?
must we be surceasing?
must you be surceasing?
must they be surceasing? 	must I have surceased?
must you have surceased?
must she have surceased?
must we have surceased?
must you have surceased?
must they have surceased? 	must I have been surceasing?
must you have been surceasing?
must she have been surceasing?
must we have been surceasing?
must you have been surceasing?
must they have been surceasing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not surcease?
must you not surcease?
must she not surcease?
must we not surcease?
must you not surcease?
must they not surcease? 	must I not be surceasing?
must you not be surceasing?
must she not be surceasing?
must we not be surceasing?
must you not be surceasing?
must they not be surceasing? 	must I not have surceased?
must you not have surceased?
must she not have surceased?
must we not have surceased?
must you not have surceased?
must they not have surceased? 	must I not have been surceasing?
must you not have been surceasing?
must she not have been surceasing?
must we not have been surceasing?
must you not have been surceasing?
must they not have been surceasing?