could frustrate
Verbe régulier : frustrate - frustrated- frustrated
Traduction française : frustrer - contrecarrer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could frustrate
you could frustrate
she could frustrate
we could frustrate
you could frustrate
they could frustrate 	I could be frustrating
you could be frustrating
she could be frustrating
we could be frustrating
you could be frustrating
they could be frustrating	I could have frustrated
you could have frustrated
she could have frustrated
we could have frustrated
you could have frustrated
they could have frustrated	I could have been frustrating
you could have been frustrating
she could have been frustrating
we could have been frustrating
you could have been frustrating
they could have been frustrating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't frustrate
you couldn't frustrate
she couldn't frustrate
we couldn't frustrate
you couldn't frustrate
they couldn't frustrate 	I couldn't be frustrating
you couldn't be frustrating
she couldn't be frustrating
we couldn't be frustrating
you couldn't be frustrating
they couldn't be frustrating	I couldn't have frustrated
you couldn't have frustrated
she couldn't have frustrated
we couldn't have frustrated
you couldn't have frustrated
they couldn't have frustrated	I couldn't have been frustrating
you couldn't have been frustrating
she couldn't have been frustrating
we couldn't have been frustrating
you couldn't have been frustrating
they couldn't have been frustrating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I frustrate?
could you frustrate?
could she frustrate?
could we frustrate?
could you frustrate?
could they frustrate? 	could I be frustrating?
could you be frustrating?
could she be frustrating?
could we be frustrating?
could you be frustrating?
could they be frustrating? 	could I have frustrated?
could you have frustrated?
could she have frustrated?
could we have frustrated?
could you have frustrated?
could they have frustrated? 	could I have been frustrating?
could you have been frustrating?
could she have been frustrating?
could we have been frustrating?
could you have been frustrating?
could they have been frustrating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I frustrate?
couldn't you frustrate?
couldn't she frustrate?
couldn't we frustrate?
couldn't you frustrate?
couldn't they frustrate? 	couldn't I be frustrating?
couldn't you be frustrating?
couldn't she be frustrating?
couldn't we be frustrating?
couldn't you be frustrating?
couldn't they be frustrating? 	couldn't I have frustrated?
couldn't you have frustrated?
couldn't she have frustrated?
couldn't we have frustrated?
couldn't you have frustrated?
couldn't they have frustrated? 	couldn't I have been frustrating?
couldn't you have been frustrating?
couldn't she have been frustrating?
couldn't we have been frustrating?
couldn't you have been frustrating?
couldn't they have been frustrating?