must strain
Verbo regolare: strain - strained- strained

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must strain
you must strain
he must strain
we must strain
you must strain
they must strain 	I must be straining
you must be straining
he must be straining
we must be straining
you must be straining
they must be straining	I must have strained
you must have strained
he must have strained
we must have strained
you must have strained
they must have strained	I must have been straining
you must have been straining
he must have been straining
we must have been straining
you must have been straining
they must have been straining	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not strain
you must not strain
he must not strain
we must not strain
you must not strain
they must not strain 	I must not be straining
you must not be straining
he must not be straining
we must not be straining
you must not be straining
they must not be straining	I must not have strained
you must not have strained
he must not have strained
we must not have strained
you must not have strained
they must not have strained	I must not have been straining
you must not have been straining
he must not have been straining
we must not have been straining
you must not have been straining
they must not have been straining	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I strain?
must you strain?
must he strain?
must we strain?
must you strain?
must they strain? 	must I be straining?
must you be straining?
must he be straining?
must we be straining?
must you be straining?
must they be straining? 	must I have strained?
must you have strained?
must he have strained?
must we have strained?
must you have strained?
must they have strained? 	must I have been straining?
must you have been straining?
must he have been straining?
must we have been straining?
must you have been straining?
must they have been straining? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not strain?
must you not strain?
must he not strain?
must we not strain?
must you not strain?
must they not strain? 	must I not be straining?
must you not be straining?
must he not be straining?
must we not be straining?
must you not be straining?
must they not be straining? 	must I not have strained?
must you not have strained?
must he not have strained?
must we not have strained?
must you not have strained?
must they not have strained? 	must I not have been straining?
must you not have been straining?
must he not have been straining?
must we not have been straining?
must you not have been straining?
must they not have been straining?