must joke
Verbo regular: joke - joked- joked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must joke
you must joke
she must joke
we must joke
you must joke
they must joke 	I must be joking
you must be joking
she must be joking
we must be joking
you must be joking
they must be joking	I must have joked
you must have joked
she must have joked
we must have joked
you must have joked
they must have joked	I must have been joking
you must have been joking
she must have been joking
we must have been joking
you must have been joking
they must have been joking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not joke
you must not joke
she must not joke
we must not joke
you must not joke
they must not joke 	I must not be joking
you must not be joking
she must not be joking
we must not be joking
you must not be joking
they must not be joking	I must not have joked
you must not have joked
she must not have joked
we must not have joked
you must not have joked
they must not have joked	I must not have been joking
you must not have been joking
she must not have been joking
we must not have been joking
you must not have been joking
they must not have been joking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I joke?
must you joke?
must she joke?
must we joke?
must you joke?
must they joke? 	must I be joking?
must you be joking?
must she be joking?
must we be joking?
must you be joking?
must they be joking? 	must I have joked?
must you have joked?
must she have joked?
must we have joked?
must you have joked?
must they have joked? 	must I have been joking?
must you have been joking?
must she have been joking?
must we have been joking?
must you have been joking?
must they have been joking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not joke?
must you not joke?
must she not joke?
must we not joke?
must you not joke?
must they not joke? 	must I not be joking?
must you not be joking?
must she not be joking?
must we not be joking?
must you not be joking?
must they not be joking? 	must I not have joked?
must you not have joked?
must she not have joked?
must we not have joked?
must you not have joked?
must they not have joked? 	must I not have been joking?
must you not have been joking?
must she not have been joking?
must we not have been joking?
must you not have been joking?
must they not have been joking?