must seesaw
Verbo regular: seesaw - seesawed- seesawed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must seesaw
you must seesaw
he must seesaw
we must seesaw
you must seesaw
they must seesaw 	I must be seesawing
you must be seesawing
he must be seesawing
we must be seesawing
you must be seesawing
they must be seesawing	I must have seesawed
you must have seesawed
he must have seesawed
we must have seesawed
you must have seesawed
they must have seesawed	I must have been seesawing
you must have been seesawing
he must have been seesawing
we must have been seesawing
you must have been seesawing
they must have been seesawing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not seesaw
you must not seesaw
he must not seesaw
we must not seesaw
you must not seesaw
they must not seesaw 	I must not be seesawing
you must not be seesawing
he must not be seesawing
we must not be seesawing
you must not be seesawing
they must not be seesawing	I must not have seesawed
you must not have seesawed
he must not have seesawed
we must not have seesawed
you must not have seesawed
they must not have seesawed	I must not have been seesawing
you must not have been seesawing
he must not have been seesawing
we must not have been seesawing
you must not have been seesawing
they must not have been seesawing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I seesaw?
must you seesaw?
must he seesaw?
must we seesaw?
must you seesaw?
must they seesaw? 	must I be seesawing?
must you be seesawing?
must he be seesawing?
must we be seesawing?
must you be seesawing?
must they be seesawing? 	must I have seesawed?
must you have seesawed?
must he have seesawed?
must we have seesawed?
must you have seesawed?
must they have seesawed? 	must I have been seesawing?
must you have been seesawing?
must he have been seesawing?
must we have been seesawing?
must you have been seesawing?
must they have been seesawing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not seesaw?
must you not seesaw?
must he not seesaw?
must we not seesaw?
must you not seesaw?
must they not seesaw? 	must I not be seesawing?
must you not be seesawing?
must he not be seesawing?
must we not be seesawing?
must you not be seesawing?
must they not be seesawing? 	must I not have seesawed?
must you not have seesawed?
must he not have seesawed?
must we not have seesawed?
must you not have seesawed?
must they not have seesawed? 	must I not have been seesawing?
must you not have been seesawing?
must he not have been seesawing?
must we not have been seesawing?
must you not have been seesawing?
must they not have been seesawing?