must widen
Verbo regular: widen - widened- widened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must widen
you must widen
she must widen
we must widen
you must widen
they must widen 	I must be widening
you must be widening
she must be widening
we must be widening
you must be widening
they must be widening	I must have widened
you must have widened
she must have widened
we must have widened
you must have widened
they must have widened	I must have been widening
you must have been widening
she must have been widening
we must have been widening
you must have been widening
they must have been widening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not widen
you must not widen
she must not widen
we must not widen
you must not widen
they must not widen 	I must not be widening
you must not be widening
she must not be widening
we must not be widening
you must not be widening
they must not be widening	I must not have widened
you must not have widened
she must not have widened
we must not have widened
you must not have widened
they must not have widened	I must not have been widening
you must not have been widening
she must not have been widening
we must not have been widening
you must not have been widening
they must not have been widening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I widen?
must you widen?
must she widen?
must we widen?
must you widen?
must they widen? 	must I be widening?
must you be widening?
must she be widening?
must we be widening?
must you be widening?
must they be widening? 	must I have widened?
must you have widened?
must she have widened?
must we have widened?
must you have widened?
must they have widened? 	must I have been widening?
must you have been widening?
must she have been widening?
must we have been widening?
must you have been widening?
must they have been widening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not widen?
must you not widen?
must she not widen?
must we not widen?
must you not widen?
must they not widen? 	must I not be widening?
must you not be widening?
must she not be widening?
must we not be widening?
must you not be widening?
must they not be widening? 	must I not have widened?
must you not have widened?
must she not have widened?
must we not have widened?
must you not have widened?
must they not have widened? 	must I not have been widening?
must you not have been widening?
must she not have been widening?
must we not have been widening?
must you not have been widening?
must they not have been widening?