must jerk
Verbo regular: jerk - jerked- jerked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must jerk
you must jerk
she must jerk
we must jerk
you must jerk
they must jerk 	I must be jerking
you must be jerking
she must be jerking
we must be jerking
you must be jerking
they must be jerking	I must have jerked
you must have jerked
she must have jerked
we must have jerked
you must have jerked
they must have jerked	I must have been jerking
you must have been jerking
she must have been jerking
we must have been jerking
you must have been jerking
they must have been jerking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not jerk
you must not jerk
she must not jerk
we must not jerk
you must not jerk
they must not jerk 	I must not be jerking
you must not be jerking
she must not be jerking
we must not be jerking
you must not be jerking
they must not be jerking	I must not have jerked
you must not have jerked
she must not have jerked
we must not have jerked
you must not have jerked
they must not have jerked	I must not have been jerking
you must not have been jerking
she must not have been jerking
we must not have been jerking
you must not have been jerking
they must not have been jerking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I jerk?
must you jerk?
must she jerk?
must we jerk?
must you jerk?
must they jerk? 	must I be jerking?
must you be jerking?
must she be jerking?
must we be jerking?
must you be jerking?
must they be jerking? 	must I have jerked?
must you have jerked?
must she have jerked?
must we have jerked?
must you have jerked?
must they have jerked? 	must I have been jerking?
must you have been jerking?
must she have been jerking?
must we have been jerking?
must you have been jerking?
must they have been jerking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not jerk?
must you not jerk?
must she not jerk?
must we not jerk?
must you not jerk?
must they not jerk? 	must I not be jerking?
must you not be jerking?
must she not be jerking?
must we not be jerking?
must you not be jerking?
must they not be jerking? 	must I not have jerked?
must you not have jerked?
must she not have jerked?
must we not have jerked?
must you not have jerked?
must they not have jerked? 	must I not have been jerking?
must you not have been jerking?
must she not have been jerking?
must we not have been jerking?
must you not have been jerking?
must they not have been jerking?