could constringe
Verbe régulier : constringe - constringed- constringed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could constringe
you could constringe
she could constringe
we could constringe
you could constringe
they could constringe 	I could be constringing
you could be constringing
she could be constringing
we could be constringing
you could be constringing
they could be constringing	I could have constringed
you could have constringed
she could have constringed
we could have constringed
you could have constringed
they could have constringed	I could have been constringing
you could have been constringing
she could have been constringing
we could have been constringing
you could have been constringing
they could have been constringing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't constringe
you couldn't constringe
she couldn't constringe
we couldn't constringe
you couldn't constringe
they couldn't constringe 	I couldn't be constringing
you couldn't be constringing
she couldn't be constringing
we couldn't be constringing
you couldn't be constringing
they couldn't be constringing	I couldn't have constringed
you couldn't have constringed
she couldn't have constringed
we couldn't have constringed
you couldn't have constringed
they couldn't have constringed	I couldn't have been constringing
you couldn't have been constringing
she couldn't have been constringing
we couldn't have been constringing
you couldn't have been constringing
they couldn't have been constringing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I constringe?
could you constringe?
could she constringe?
could we constringe?
could you constringe?
could they constringe? 	could I be constringing?
could you be constringing?
could she be constringing?
could we be constringing?
could you be constringing?
could they be constringing? 	could I have constringed?
could you have constringed?
could she have constringed?
could we have constringed?
could you have constringed?
could they have constringed? 	could I have been constringing?
could you have been constringing?
could she have been constringing?
could we have been constringing?
could you have been constringing?
could they have been constringing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I constringe?
couldn't you constringe?
couldn't she constringe?
couldn't we constringe?
couldn't you constringe?
couldn't they constringe? 	couldn't I be constringing?
couldn't you be constringing?
couldn't she be constringing?
couldn't we be constringing?
couldn't you be constringing?
couldn't they be constringing? 	couldn't I have constringed?
couldn't you have constringed?
couldn't she have constringed?
couldn't we have constringed?
couldn't you have constringed?
couldn't they have constringed? 	couldn't I have been constringing?
couldn't you have been constringing?
couldn't she have been constringing?
couldn't we have been constringing?
couldn't you have been constringing?
couldn't they have been constringing?