could parenthesize
Verbe régulier : parenthesize - parenthesized- parenthesized

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could parenthesize
you could parenthesize
he could parenthesize
we could parenthesize
you could parenthesize
they could parenthesize 	I could be parenthesizing
you could be parenthesizing
he could be parenthesizing
we could be parenthesizing
you could be parenthesizing
they could be parenthesizing	I could have parenthesized
you could have parenthesized
he could have parenthesized
we could have parenthesized
you could have parenthesized
they could have parenthesized	I could have been parenthesizing
you could have been parenthesizing
he could have been parenthesizing
we could have been parenthesizing
you could have been parenthesizing
they could have been parenthesizing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't parenthesize
you couldn't parenthesize
he couldn't parenthesize
we couldn't parenthesize
you couldn't parenthesize
they couldn't parenthesize 	I couldn't be parenthesizing
you couldn't be parenthesizing
he couldn't be parenthesizing
we couldn't be parenthesizing
you couldn't be parenthesizing
they couldn't be parenthesizing	I couldn't have parenthesized
you couldn't have parenthesized
he couldn't have parenthesized
we couldn't have parenthesized
you couldn't have parenthesized
they couldn't have parenthesized	I couldn't have been parenthesizing
you couldn't have been parenthesizing
he couldn't have been parenthesizing
we couldn't have been parenthesizing
you couldn't have been parenthesizing
they couldn't have been parenthesizing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I parenthesize?
could you parenthesize?
could he parenthesize?
could we parenthesize?
could you parenthesize?
could they parenthesize? 	could I be parenthesizing?
could you be parenthesizing?
could he be parenthesizing?
could we be parenthesizing?
could you be parenthesizing?
could they be parenthesizing? 	could I have parenthesized?
could you have parenthesized?
could he have parenthesized?
could we have parenthesized?
could you have parenthesized?
could they have parenthesized? 	could I have been parenthesizing?
could you have been parenthesizing?
could he have been parenthesizing?
could we have been parenthesizing?
could you have been parenthesizing?
could they have been parenthesizing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I parenthesize?
couldn't you parenthesize?
couldn't he parenthesize?
couldn't we parenthesize?
couldn't you parenthesize?
couldn't they parenthesize? 	couldn't I be parenthesizing?
couldn't you be parenthesizing?
couldn't he be parenthesizing?
couldn't we be parenthesizing?
couldn't you be parenthesizing?
couldn't they be parenthesizing? 	couldn't I have parenthesized?
couldn't you have parenthesized?
couldn't he have parenthesized?
couldn't we have parenthesized?
couldn't you have parenthesized?
couldn't they have parenthesized? 	couldn't I have been parenthesizing?
couldn't you have been parenthesizing?
couldn't he have been parenthesizing?
couldn't we have been parenthesizing?
couldn't you have been parenthesizing?
couldn't they have been parenthesizing?