could preinstill
Verbe régulier : preinstill - preinstilled- preinstilled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could preinstill
you could preinstill
she could preinstill
we could preinstill
you could preinstill
they could preinstill 	I could be preinstilling
you could be preinstilling
she could be preinstilling
we could be preinstilling
you could be preinstilling
they could be preinstilling	I could have preinstilled
you could have preinstilled
she could have preinstilled
we could have preinstilled
you could have preinstilled
they could have preinstilled	I could have been preinstilling
you could have been preinstilling
she could have been preinstilling
we could have been preinstilling
you could have been preinstilling
they could have been preinstilling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not preinstill
you could not preinstill
she could not preinstill
we could not preinstill
you could not preinstill
they could not preinstill 	I could not be preinstilling
you could not be preinstilling
she could not be preinstilling
we could not be preinstilling
you could not be preinstilling
they could not be preinstilling	I could not have preinstilled
you could not have preinstilled
she could not have preinstilled
we could not have preinstilled
you could not have preinstilled
they could not have preinstilled	I could not have been preinstilling
you could not have been preinstilling
she could not have been preinstilling
we could not have been preinstilling
you could not have been preinstilling
they could not have been preinstilling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I preinstill?
could you preinstill?
could she preinstill?
could we preinstill?
could you preinstill?
could they preinstill? 	could I be preinstilling?
could you be preinstilling?
could she be preinstilling?
could we be preinstilling?
could you be preinstilling?
could they be preinstilling? 	could I have preinstilled?
could you have preinstilled?
could she have preinstilled?
could we have preinstilled?
could you have preinstilled?
could they have preinstilled? 	could I have been preinstilling?
could you have been preinstilling?
could she have been preinstilling?
could we have been preinstilling?
could you have been preinstilling?
could they have been preinstilling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not preinstill?
could you not preinstill?
could she not preinstill?
could we not preinstill?
could you not preinstill?
could they not preinstill? 	could I not be preinstilling?
could you not be preinstilling?
could she not be preinstilling?
could we not be preinstilling?
could you not be preinstilling?
could they not be preinstilling? 	could I not have preinstilled?
could you not have preinstilled?
could she not have preinstilled?
could we not have preinstilled?
could you not have preinstilled?
could they not have preinstilled? 	could I not have been preinstilling?
could you not have been preinstilling?
could she not have been preinstilling?
could we not have been preinstilling?
could you not have been preinstilling?
could they not have been preinstilling?