must parbuckle
Verbo regular: parbuckle - parbuckled- parbuckled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must parbuckle
you must parbuckle
he must parbuckle
we must parbuckle
you must parbuckle
they must parbuckle 	I must be parbuckling
you must be parbuckling
he must be parbuckling
we must be parbuckling
you must be parbuckling
they must be parbuckling	I must have parbuckled
you must have parbuckled
he must have parbuckled
we must have parbuckled
you must have parbuckled
they must have parbuckled	I must have been parbuckling
you must have been parbuckling
he must have been parbuckling
we must have been parbuckling
you must have been parbuckling
they must have been parbuckling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not parbuckle
you must not parbuckle
he must not parbuckle
we must not parbuckle
you must not parbuckle
they must not parbuckle 	I must not be parbuckling
you must not be parbuckling
he must not be parbuckling
we must not be parbuckling
you must not be parbuckling
they must not be parbuckling	I must not have parbuckled
you must not have parbuckled
he must not have parbuckled
we must not have parbuckled
you must not have parbuckled
they must not have parbuckled	I must not have been parbuckling
you must not have been parbuckling
he must not have been parbuckling
we must not have been parbuckling
you must not have been parbuckling
they must not have been parbuckling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I parbuckle?
must you parbuckle?
must he parbuckle?
must we parbuckle?
must you parbuckle?
must they parbuckle? 	must I be parbuckling?
must you be parbuckling?
must he be parbuckling?
must we be parbuckling?
must you be parbuckling?
must they be parbuckling? 	must I have parbuckled?
must you have parbuckled?
must he have parbuckled?
must we have parbuckled?
must you have parbuckled?
must they have parbuckled? 	must I have been parbuckling?
must you have been parbuckling?
must he have been parbuckling?
must we have been parbuckling?
must you have been parbuckling?
must they have been parbuckling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not parbuckle?
must you not parbuckle?
must he not parbuckle?
must we not parbuckle?
must you not parbuckle?
must they not parbuckle? 	must I not be parbuckling?
must you not be parbuckling?
must he not be parbuckling?
must we not be parbuckling?
must you not be parbuckling?
must they not be parbuckling? 	must I not have parbuckled?
must you not have parbuckled?
must he not have parbuckled?
must we not have parbuckled?
must you not have parbuckled?
must they not have parbuckled? 	must I not have been parbuckling?
must you not have been parbuckling?
must he not have been parbuckling?
must we not have been parbuckling?
must you not have been parbuckling?
must they not have been parbuckling?