must dredge
Verbo regular: dredge - dredged- dredged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must dredge
you must dredge
he must dredge
we must dredge
you must dredge
they must dredge 	I must be dredging
you must be dredging
he must be dredging
we must be dredging
you must be dredging
they must be dredging	I must have dredged
you must have dredged
he must have dredged
we must have dredged
you must have dredged
they must have dredged	I must have been dredging
you must have been dredging
he must have been dredging
we must have been dredging
you must have been dredging
they must have been dredging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not dredge
you must not dredge
he must not dredge
we must not dredge
you must not dredge
they must not dredge 	I must not be dredging
you must not be dredging
he must not be dredging
we must not be dredging
you must not be dredging
they must not be dredging	I must not have dredged
you must not have dredged
he must not have dredged
we must not have dredged
you must not have dredged
they must not have dredged	I must not have been dredging
you must not have been dredging
he must not have been dredging
we must not have been dredging
you must not have been dredging
they must not have been dredging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I dredge?
must you dredge?
must he dredge?
must we dredge?
must you dredge?
must they dredge? 	must I be dredging?
must you be dredging?
must he be dredging?
must we be dredging?
must you be dredging?
must they be dredging? 	must I have dredged?
must you have dredged?
must he have dredged?
must we have dredged?
must you have dredged?
must they have dredged? 	must I have been dredging?
must you have been dredging?
must he have been dredging?
must we have been dredging?
must you have been dredging?
must they have been dredging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not dredge?
must you not dredge?
must he not dredge?
must we not dredge?
must you not dredge?
must they not dredge? 	must I not be dredging?
must you not be dredging?
must he not be dredging?
must we not be dredging?
must you not be dredging?
must they not be dredging? 	must I not have dredged?
must you not have dredged?
must he not have dredged?
must we not have dredged?
must you not have dredged?
must they not have dredged? 	must I not have been dredging?
must you not have been dredging?
must he not have been dredging?
must we not have been dredging?
must you not have been dredging?
must they not have been dredging?