must coo
Verbo regolare: coo - cooed- cooed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must coo
you must coo
he must coo
we must coo
you must coo
they must coo 	I must be cooing
you must be cooing
he must be cooing
we must be cooing
you must be cooing
they must be cooing	I must have cooed
you must have cooed
he must have cooed
we must have cooed
you must have cooed
they must have cooed	I must have been cooing
you must have been cooing
he must have been cooing
we must have been cooing
you must have been cooing
they must have been cooing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not coo
you must not coo
he must not coo
we must not coo
you must not coo
they must not coo 	I must not be cooing
you must not be cooing
he must not be cooing
we must not be cooing
you must not be cooing
they must not be cooing	I must not have cooed
you must not have cooed
he must not have cooed
we must not have cooed
you must not have cooed
they must not have cooed	I must not have been cooing
you must not have been cooing
he must not have been cooing
we must not have been cooing
you must not have been cooing
they must not have been cooing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I coo?
must you coo?
must he coo?
must we coo?
must you coo?
must they coo? 	must I be cooing?
must you be cooing?
must he be cooing?
must we be cooing?
must you be cooing?
must they be cooing? 	must I have cooed?
must you have cooed?
must he have cooed?
must we have cooed?
must you have cooed?
must they have cooed? 	must I have been cooing?
must you have been cooing?
must he have been cooing?
must we have been cooing?
must you have been cooing?
must they have been cooing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not coo?
must you not coo?
must he not coo?
must we not coo?
must you not coo?
must they not coo? 	must I not be cooing?
must you not be cooing?
must he not be cooing?
must we not be cooing?
must you not be cooing?
must they not be cooing? 	must I not have cooed?
must you not have cooed?
must he not have cooed?
must we not have cooed?
must you not have cooed?
must they not have cooed? 	must I not have been cooing?
must you not have been cooing?
must he not have been cooing?
must we not have been cooing?
must you not have been cooing?
must they not have been cooing?