could clench
Verbe régulier : clench - clenched- clenched
Traduction française : serrer - empoigner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could clench
you could clench
she could clench
we could clench
you could clench
they could clench 	I could be clenching
you could be clenching
she could be clenching
we could be clenching
you could be clenching
they could be clenching	I could have clenched
you could have clenched
she could have clenched
we could have clenched
you could have clenched
they could have clenched	I could have been clenching
you could have been clenching
she could have been clenching
we could have been clenching
you could have been clenching
they could have been clenching	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't clench
you couldn't clench
she couldn't clench
we couldn't clench
you couldn't clench
they couldn't clench 	I couldn't be clenching
you couldn't be clenching
she couldn't be clenching
we couldn't be clenching
you couldn't be clenching
they couldn't be clenching	I couldn't have clenched
you couldn't have clenched
she couldn't have clenched
we couldn't have clenched
you couldn't have clenched
they couldn't have clenched	I couldn't have been clenching
you couldn't have been clenching
she couldn't have been clenching
we couldn't have been clenching
you couldn't have been clenching
they couldn't have been clenching	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I clench?
could you clench?
could she clench?
could we clench?
could you clench?
could they clench? 	could I be clenching?
could you be clenching?
could she be clenching?
could we be clenching?
could you be clenching?
could they be clenching? 	could I have clenched?
could you have clenched?
could she have clenched?
could we have clenched?
could you have clenched?
could they have clenched? 	could I have been clenching?
could you have been clenching?
could she have been clenching?
could we have been clenching?
could you have been clenching?
could they have been clenching? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I clench?
couldn't you clench?
couldn't she clench?
couldn't we clench?
couldn't you clench?
couldn't they clench? 	couldn't I be clenching?
couldn't you be clenching?
couldn't she be clenching?
couldn't we be clenching?
couldn't you be clenching?
couldn't they be clenching? 	couldn't I have clenched?
couldn't you have clenched?
couldn't she have clenched?
couldn't we have clenched?
couldn't you have clenched?
couldn't they have clenched? 	couldn't I have been clenching?
couldn't you have been clenching?
couldn't she have been clenching?
couldn't we have been clenching?
couldn't you have been clenching?
couldn't they have been clenching?