must water
Verbo regular: water - watered- watered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must water
you must water
he must water
we must water
you must water
they must water 	I must be watering
you must be watering
he must be watering
we must be watering
you must be watering
they must be watering	I must have watered
you must have watered
he must have watered
we must have watered
you must have watered
they must have watered	I must have been watering
you must have been watering
he must have been watering
we must have been watering
you must have been watering
they must have been watering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not water
you must not water
he must not water
we must not water
you must not water
they must not water 	I must not be watering
you must not be watering
he must not be watering
we must not be watering
you must not be watering
they must not be watering	I must not have watered
you must not have watered
he must not have watered
we must not have watered
you must not have watered
they must not have watered	I must not have been watering
you must not have been watering
he must not have been watering
we must not have been watering
you must not have been watering
they must not have been watering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I water?
must you water?
must he water?
must we water?
must you water?
must they water? 	must I be watering?
must you be watering?
must he be watering?
must we be watering?
must you be watering?
must they be watering? 	must I have watered?
must you have watered?
must he have watered?
must we have watered?
must you have watered?
must they have watered? 	must I have been watering?
must you have been watering?
must he have been watering?
must we have been watering?
must you have been watering?
must they have been watering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not water?
must you not water?
must he not water?
must we not water?
must you not water?
must they not water? 	must I not be watering?
must you not be watering?
must he not be watering?
must we not be watering?
must you not be watering?
must they not be watering? 	must I not have watered?
must you not have watered?
must he not have watered?
must we not have watered?
must you not have watered?
must they not have watered? 	must I not have been watering?
must you not have been watering?
must he not have been watering?
must we not have been watering?
must you not have been watering?
must they not have been watering?