must wriggle
Verbo regular: wriggle - wriggled- wriggled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must wriggle
you must wriggle
he must wriggle
we must wriggle
you must wriggle
they must wriggle 	I must be wriggling
you must be wriggling
he must be wriggling
we must be wriggling
you must be wriggling
they must be wriggling	I must have wriggled
you must have wriggled
he must have wriggled
we must have wriggled
you must have wriggled
they must have wriggled	I must have been wriggling
you must have been wriggling
he must have been wriggling
we must have been wriggling
you must have been wriggling
they must have been wriggling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not wriggle
you must not wriggle
he must not wriggle
we must not wriggle
you must not wriggle
they must not wriggle 	I must not be wriggling
you must not be wriggling
he must not be wriggling
we must not be wriggling
you must not be wriggling
they must not be wriggling	I must not have wriggled
you must not have wriggled
he must not have wriggled
we must not have wriggled
you must not have wriggled
they must not have wriggled	I must not have been wriggling
you must not have been wriggling
he must not have been wriggling
we must not have been wriggling
you must not have been wriggling
they must not have been wriggling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I wriggle?
must you wriggle?
must he wriggle?
must we wriggle?
must you wriggle?
must they wriggle? 	must I be wriggling?
must you be wriggling?
must he be wriggling?
must we be wriggling?
must you be wriggling?
must they be wriggling? 	must I have wriggled?
must you have wriggled?
must he have wriggled?
must we have wriggled?
must you have wriggled?
must they have wriggled? 	must I have been wriggling?
must you have been wriggling?
must he have been wriggling?
must we have been wriggling?
must you have been wriggling?
must they have been wriggling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not wriggle?
must you not wriggle?
must he not wriggle?
must we not wriggle?
must you not wriggle?
must they not wriggle? 	must I not be wriggling?
must you not be wriggling?
must he not be wriggling?
must we not be wriggling?
must you not be wriggling?
must they not be wriggling? 	must I not have wriggled?
must you not have wriggled?
must he not have wriggled?
must we not have wriggled?
must you not have wriggled?
must they not have wriggled? 	must I not have been wriggling?
must you not have been wriggling?
must he not have been wriggling?
must we not have been wriggling?
must you not have been wriggling?
must they not have been wriggling?