must constringe
Verbo regolare: constringe - constringed- constringed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must constringe
you must constringe
he must constringe
we must constringe
you must constringe
they must constringe 	I must be constringing
you must be constringing
he must be constringing
we must be constringing
you must be constringing
they must be constringing	I must have constringed
you must have constringed
he must have constringed
we must have constringed
you must have constringed
they must have constringed	I must have been constringing
you must have been constringing
he must have been constringing
we must have been constringing
you must have been constringing
they must have been constringing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't constringe
you mustn't constringe
he mustn't constringe
we mustn't constringe
you mustn't constringe
they mustn't constringe 	I mustn't be constringing
you mustn't be constringing
he mustn't be constringing
we mustn't be constringing
you mustn't be constringing
they mustn't be constringing	I mustn't have constringed
you mustn't have constringed
he mustn't have constringed
we mustn't have constringed
you mustn't have constringed
they mustn't have constringed	I mustn't have been constringing
you mustn't have been constringing
he mustn't have been constringing
we mustn't have been constringing
you mustn't have been constringing
they mustn't have been constringing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I constringe?
must you constringe?
must he constringe?
must we constringe?
must you constringe?
must they constringe? 	must I be constringing?
must you be constringing?
must he be constringing?
must we be constringing?
must you be constringing?
must they be constringing? 	must I have constringed?
must you have constringed?
must he have constringed?
must we have constringed?
must you have constringed?
must they have constringed? 	must I have been constringing?
must you have been constringing?
must he have been constringing?
must we have been constringing?
must you have been constringing?
must they have been constringing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I constringe?
mustn't you constringe?
mustn't he constringe?
mustn't we constringe?
mustn't you constringe?
mustn't they constringe? 	mustn't I be constringing?
mustn't you be constringing?
mustn't he be constringing?
mustn't we be constringing?
mustn't you be constringing?
mustn't they be constringing? 	mustn't I have constringed?
mustn't you have constringed?
mustn't he have constringed?
mustn't we have constringed?
mustn't you have constringed?
mustn't they have constringed? 	mustn't I have been constringing?
mustn't you have been constringing?
mustn't he have been constringing?
mustn't we have been constringing?
mustn't you have been constringing?
mustn't they have been constringing?