must solve
Verbo regolare: solve - solved- solved

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must solve
you must solve
he must solve
we must solve
you must solve
they must solve 	I must be solving
you must be solving
he must be solving
we must be solving
you must be solving
they must be solving	I must have solved
you must have solved
he must have solved
we must have solved
you must have solved
they must have solved	I must have been solving
you must have been solving
he must have been solving
we must have been solving
you must have been solving
they must have been solving	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't solve
you mustn't solve
he mustn't solve
we mustn't solve
you mustn't solve
they mustn't solve 	I mustn't be solving
you mustn't be solving
he mustn't be solving
we mustn't be solving
you mustn't be solving
they mustn't be solving	I mustn't have solved
you mustn't have solved
he mustn't have solved
we mustn't have solved
you mustn't have solved
they mustn't have solved	I mustn't have been solving
you mustn't have been solving
he mustn't have been solving
we mustn't have been solving
you mustn't have been solving
they mustn't have been solving	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I solve?
must you solve?
must he solve?
must we solve?
must you solve?
must they solve? 	must I be solving?
must you be solving?
must he be solving?
must we be solving?
must you be solving?
must they be solving? 	must I have solved?
must you have solved?
must he have solved?
must we have solved?
must you have solved?
must they have solved? 	must I have been solving?
must you have been solving?
must he have been solving?
must we have been solving?
must you have been solving?
must they have been solving? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I solve?
mustn't you solve?
mustn't he solve?
mustn't we solve?
mustn't you solve?
mustn't they solve? 	mustn't I be solving?
mustn't you be solving?
mustn't he be solving?
mustn't we be solving?
mustn't you be solving?
mustn't they be solving? 	mustn't I have solved?
mustn't you have solved?
mustn't he have solved?
mustn't we have solved?
mustn't you have solved?
mustn't they have solved? 	mustn't I have been solving?
mustn't you have been solving?
mustn't he have been solving?
mustn't we have been solving?
mustn't you have been solving?
mustn't they have been solving?