must nip
Verbo regular: nip - nipped- nipped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must nip
you must nip
he must nip
we must nip
you must nip
they must nip 	I must be nipping
you must be nipping
he must be nipping
we must be nipping
you must be nipping
they must be nipping	I must have nipped
you must have nipped
he must have nipped
we must have nipped
you must have nipped
they must have nipped	I must have been nipping
you must have been nipping
he must have been nipping
we must have been nipping
you must have been nipping
they must have been nipping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not nip
you must not nip
he must not nip
we must not nip
you must not nip
they must not nip 	I must not be nipping
you must not be nipping
he must not be nipping
we must not be nipping
you must not be nipping
they must not be nipping	I must not have nipped
you must not have nipped
he must not have nipped
we must not have nipped
you must not have nipped
they must not have nipped	I must not have been nipping
you must not have been nipping
he must not have been nipping
we must not have been nipping
you must not have been nipping
they must not have been nipping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I nip?
must you nip?
must he nip?
must we nip?
must you nip?
must they nip? 	must I be nipping?
must you be nipping?
must he be nipping?
must we be nipping?
must you be nipping?
must they be nipping? 	must I have nipped?
must you have nipped?
must he have nipped?
must we have nipped?
must you have nipped?
must they have nipped? 	must I have been nipping?
must you have been nipping?
must he have been nipping?
must we have been nipping?
must you have been nipping?
must they have been nipping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not nip?
must you not nip?
must he not nip?
must we not nip?
must you not nip?
must they not nip? 	must I not be nipping?
must you not be nipping?
must he not be nipping?
must we not be nipping?
must you not be nipping?
must they not be nipping? 	must I not have nipped?
must you not have nipped?
must he not have nipped?
must we not have nipped?
must you not have nipped?
must they not have nipped? 	must I not have been nipping?
must you not have been nipping?
must he not have been nipping?
must we not have been nipping?
must you not have been nipping?
must they not have been nipping?