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
he must joke
we must joke
you must joke
they must joke 	I must be joking
you must be joking
he must be joking
we must be joking
you must be joking
they must be joking	I must have joked
you must have joked
he 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
he 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
he 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
he 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
he 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
he 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 he joke?
must we joke?
must you joke?
must they joke? 	must I be joking?
must you be joking?
must he be joking?
must we be joking?
must you be joking?
must they be joking? 	must I have joked?
must you have joked?
must he 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 he 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 he 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 he 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 he 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 he not have been joking?
must we not have been joking?
must you not have been joking?
must they not have been joking?