must delve
Verbo regular: delve - delved- delved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must delve
you must delve
he must delve
we must delve
you must delve
they must delve 	I must be delving
you must be delving
he must be delving
we must be delving
you must be delving
they must be delving	I must have delved
you must have delved
he must have delved
we must have delved
you must have delved
they must have delved	I must have been delving
you must have been delving
he must have been delving
we must have been delving
you must have been delving
they must have been delving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not delve
you must not delve
he must not delve
we must not delve
you must not delve
they must not delve 	I must not be delving
you must not be delving
he must not be delving
we must not be delving
you must not be delving
they must not be delving	I must not have delved
you must not have delved
he must not have delved
we must not have delved
you must not have delved
they must not have delved	I must not have been delving
you must not have been delving
he must not have been delving
we must not have been delving
you must not have been delving
they must not have been delving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I delve?
must you delve?
must he delve?
must we delve?
must you delve?
must they delve? 	must I be delving?
must you be delving?
must he be delving?
must we be delving?
must you be delving?
must they be delving? 	must I have delved?
must you have delved?
must he have delved?
must we have delved?
must you have delved?
must they have delved? 	must I have been delving?
must you have been delving?
must he have been delving?
must we have been delving?
must you have been delving?
must they have been delving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not delve?
must you not delve?
must he not delve?
must we not delve?
must you not delve?
must they not delve? 	must I not be delving?
must you not be delving?
must he not be delving?
must we not be delving?
must you not be delving?
must they not be delving? 	must I not have delved?
must you not have delved?
must he not have delved?
must we not have delved?
must you not have delved?
must they not have delved? 	must I not have been delving?
must you not have been delving?
must he not have been delving?
must we not have been delving?
must you not have been delving?
must they not have been delving?