must deepen
Verbo regular: deepen - deepened- deepened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must deepen
you must deepen
he must deepen
we must deepen
you must deepen
they must deepen 	I must be deepening
you must be deepening
he must be deepening
we must be deepening
you must be deepening
they must be deepening	I must have deepened
you must have deepened
he must have deepened
we must have deepened
you must have deepened
they must have deepened	I must have been deepening
you must have been deepening
he must have been deepening
we must have been deepening
you must have been deepening
they must have been deepening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not deepen
you must not deepen
he must not deepen
we must not deepen
you must not deepen
they must not deepen 	I must not be deepening
you must not be deepening
he must not be deepening
we must not be deepening
you must not be deepening
they must not be deepening	I must not have deepened
you must not have deepened
he must not have deepened
we must not have deepened
you must not have deepened
they must not have deepened	I must not have been deepening
you must not have been deepening
he must not have been deepening
we must not have been deepening
you must not have been deepening
they must not have been deepening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I deepen?
must you deepen?
must he deepen?
must we deepen?
must you deepen?
must they deepen? 	must I be deepening?
must you be deepening?
must he be deepening?
must we be deepening?
must you be deepening?
must they be deepening? 	must I have deepened?
must you have deepened?
must he have deepened?
must we have deepened?
must you have deepened?
must they have deepened? 	must I have been deepening?
must you have been deepening?
must he have been deepening?
must we have been deepening?
must you have been deepening?
must they have been deepening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not deepen?
must you not deepen?
must he not deepen?
must we not deepen?
must you not deepen?
must they not deepen? 	must I not be deepening?
must you not be deepening?
must he not be deepening?
must we not be deepening?
must you not be deepening?
must they not be deepening? 	must I not have deepened?
must you not have deepened?
must he not have deepened?
must we not have deepened?
must you not have deepened?
must they not have deepened? 	must I not have been deepening?
must you not have been deepening?
must he not have been deepening?
must we not have been deepening?
must you not have been deepening?
must they not have been deepening?