must haven
Verbo regular: haven - havened- havened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must haven
you must haven
she must haven
we must haven
you must haven
they must haven 	I must be havening
you must be havening
she must be havening
we must be havening
you must be havening
they must be havening	I must have havened
you must have havened
she must have havened
we must have havened
you must have havened
they must have havened	I must have been havening
you must have been havening
she must have been havening
we must have been havening
you must have been havening
they must have been havening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not haven
you must not haven
she must not haven
we must not haven
you must not haven
they must not haven 	I must not be havening
you must not be havening
she must not be havening
we must not be havening
you must not be havening
they must not be havening	I must not have havened
you must not have havened
she must not have havened
we must not have havened
you must not have havened
they must not have havened	I must not have been havening
you must not have been havening
she must not have been havening
we must not have been havening
you must not have been havening
they must not have been havening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I haven?
must you haven?
must she haven?
must we haven?
must you haven?
must they haven? 	must I be havening?
must you be havening?
must she be havening?
must we be havening?
must you be havening?
must they be havening? 	must I have havened?
must you have havened?
must she have havened?
must we have havened?
must you have havened?
must they have havened? 	must I have been havening?
must you have been havening?
must she have been havening?
must we have been havening?
must you have been havening?
must they have been havening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not haven?
must you not haven?
must she not haven?
must we not haven?
must you not haven?
must they not haven? 	must I not be havening?
must you not be havening?
must she not be havening?
must we not be havening?
must you not be havening?
must they not be havening? 	must I not have havened?
must you not have havened?
must she not have havened?
must we not have havened?
must you not have havened?
must they not have havened? 	must I not have been havening?
must you not have been havening?
must she not have been havening?
must we not have been havening?
must you not have been havening?
must they not have been havening?