could preacknowledge
Verbe régulier : preacknowledge - preacknowledged- preacknowledged

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could preacknowledge
you could preacknowledge
she could preacknowledge
we could preacknowledge
you could preacknowledge
they could preacknowledge 	I could be preacknowledging
you could be preacknowledging
she could be preacknowledging
we could be preacknowledging
you could be preacknowledging
they could be preacknowledging	I could have preacknowledged
you could have preacknowledged
she could have preacknowledged
we could have preacknowledged
you could have preacknowledged
they could have preacknowledged	I could have been preacknowledging
you could have been preacknowledging
she could have been preacknowledging
we could have been preacknowledging
you could have been preacknowledging
they could have been preacknowledging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't preacknowledge
you couldn't preacknowledge
she couldn't preacknowledge
we couldn't preacknowledge
you couldn't preacknowledge
they couldn't preacknowledge 	I couldn't be preacknowledging
you couldn't be preacknowledging
she couldn't be preacknowledging
we couldn't be preacknowledging
you couldn't be preacknowledging
they couldn't be preacknowledging	I couldn't have preacknowledged
you couldn't have preacknowledged
she couldn't have preacknowledged
we couldn't have preacknowledged
you couldn't have preacknowledged
they couldn't have preacknowledged	I couldn't have been preacknowledging
you couldn't have been preacknowledging
she couldn't have been preacknowledging
we couldn't have been preacknowledging
you couldn't have been preacknowledging
they couldn't have been preacknowledging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I preacknowledge?
could you preacknowledge?
could she preacknowledge?
could we preacknowledge?
could you preacknowledge?
could they preacknowledge? 	could I be preacknowledging?
could you be preacknowledging?
could she be preacknowledging?
could we be preacknowledging?
could you be preacknowledging?
could they be preacknowledging? 	could I have preacknowledged?
could you have preacknowledged?
could she have preacknowledged?
could we have preacknowledged?
could you have preacknowledged?
could they have preacknowledged? 	could I have been preacknowledging?
could you have been preacknowledging?
could she have been preacknowledging?
could we have been preacknowledging?
could you have been preacknowledging?
could they have been preacknowledging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I preacknowledge?
couldn't you preacknowledge?
couldn't she preacknowledge?
couldn't we preacknowledge?
couldn't you preacknowledge?
couldn't they preacknowledge? 	couldn't I be preacknowledging?
couldn't you be preacknowledging?
couldn't she be preacknowledging?
couldn't we be preacknowledging?
couldn't you be preacknowledging?
couldn't they be preacknowledging? 	couldn't I have preacknowledged?
couldn't you have preacknowledged?
couldn't she have preacknowledged?
couldn't we have preacknowledged?
couldn't you have preacknowledged?
couldn't they have preacknowledged? 	couldn't I have been preacknowledging?
couldn't you have been preacknowledging?
couldn't she have been preacknowledging?
couldn't we have been preacknowledging?
couldn't you have been preacknowledging?
couldn't they have been preacknowledging?