must subirrigate
Verbo regular: subirrigate - subirrigated- subirrigated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must subirrigate
you must subirrigate
he must subirrigate
we must subirrigate
you must subirrigate
they must subirrigate 	I must be subirrigating
you must be subirrigating
he must be subirrigating
we must be subirrigating
you must be subirrigating
they must be subirrigating	I must have subirrigated
you must have subirrigated
he must have subirrigated
we must have subirrigated
you must have subirrigated
they must have subirrigated	I must have been subirrigating
you must have been subirrigating
he must have been subirrigating
we must have been subirrigating
you must have been subirrigating
they must have been subirrigating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not subirrigate
you must not subirrigate
he must not subirrigate
we must not subirrigate
you must not subirrigate
they must not subirrigate 	I must not be subirrigating
you must not be subirrigating
he must not be subirrigating
we must not be subirrigating
you must not be subirrigating
they must not be subirrigating	I must not have subirrigated
you must not have subirrigated
he must not have subirrigated
we must not have subirrigated
you must not have subirrigated
they must not have subirrigated	I must not have been subirrigating
you must not have been subirrigating
he must not have been subirrigating
we must not have been subirrigating
you must not have been subirrigating
they must not have been subirrigating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I subirrigate?
must you subirrigate?
must he subirrigate?
must we subirrigate?
must you subirrigate?
must they subirrigate? 	must I be subirrigating?
must you be subirrigating?
must he be subirrigating?
must we be subirrigating?
must you be subirrigating?
must they be subirrigating? 	must I have subirrigated?
must you have subirrigated?
must he have subirrigated?
must we have subirrigated?
must you have subirrigated?
must they have subirrigated? 	must I have been subirrigating?
must you have been subirrigating?
must he have been subirrigating?
must we have been subirrigating?
must you have been subirrigating?
must they have been subirrigating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not subirrigate?
must you not subirrigate?
must he not subirrigate?
must we not subirrigate?
must you not subirrigate?
must they not subirrigate? 	must I not be subirrigating?
must you not be subirrigating?
must he not be subirrigating?
must we not be subirrigating?
must you not be subirrigating?
must they not be subirrigating? 	must I not have subirrigated?
must you not have subirrigated?
must he not have subirrigated?
must we not have subirrigated?
must you not have subirrigated?
must they not have subirrigated? 	must I not have been subirrigating?
must you not have been subirrigating?
must he not have been subirrigating?
must we not have been subirrigating?
must you not have been subirrigating?
must they not have been subirrigating?