must mess
Verbo regular: mess - messed- messed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must mess
you must mess
she must mess
we must mess
you must mess
they must mess 	I must be messing
you must be messing
she must be messing
we must be messing
you must be messing
they must be messing	I must have messed
you must have messed
she must have messed
we must have messed
you must have messed
they must have messed	I must have been messing
you must have been messing
she must have been messing
we must have been messing
you must have been messing
they must have been messing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not mess
you must not mess
she must not mess
we must not mess
you must not mess
they must not mess 	I must not be messing
you must not be messing
she must not be messing
we must not be messing
you must not be messing
they must not be messing	I must not have messed
you must not have messed
she must not have messed
we must not have messed
you must not have messed
they must not have messed	I must not have been messing
you must not have been messing
she must not have been messing
we must not have been messing
you must not have been messing
they must not have been messing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I mess?
must you mess?
must she mess?
must we mess?
must you mess?
must they mess? 	must I be messing?
must you be messing?
must she be messing?
must we be messing?
must you be messing?
must they be messing? 	must I have messed?
must you have messed?
must she have messed?
must we have messed?
must you have messed?
must they have messed? 	must I have been messing?
must you have been messing?
must she have been messing?
must we have been messing?
must you have been messing?
must they have been messing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not mess?
must you not mess?
must she not mess?
must we not mess?
must you not mess?
must they not mess? 	must I not be messing?
must you not be messing?
must she not be messing?
must we not be messing?
must you not be messing?
must they not be messing? 	must I not have messed?
must you not have messed?
must she not have messed?
must we not have messed?
must you not have messed?
must they not have messed? 	must I not have been messing?
must you not have been messing?
must she not have been messing?
must we not have been messing?
must you not have been messing?
must they not have been messing?