could crust
Verbe régulier : crust - crusted- crusted
Traduction française : couvrir d'une croûte - former une croûte 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could crust
you could crust
she could crust
we could crust
you could crust
they could crust 	I could be crusting
you could be crusting
she could be crusting
we could be crusting
you could be crusting
they could be crusting	I could have crusted
you could have crusted
she could have crusted
we could have crusted
you could have crusted
they could have crusted	I could have been crusting
you could have been crusting
she could have been crusting
we could have been crusting
you could have been crusting
they could have been crusting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't crust
you couldn't crust
she couldn't crust
we couldn't crust
you couldn't crust
they couldn't crust 	I couldn't be crusting
you couldn't be crusting
she couldn't be crusting
we couldn't be crusting
you couldn't be crusting
they couldn't be crusting	I couldn't have crusted
you couldn't have crusted
she couldn't have crusted
we couldn't have crusted
you couldn't have crusted
they couldn't have crusted	I couldn't have been crusting
you couldn't have been crusting
she couldn't have been crusting
we couldn't have been crusting
you couldn't have been crusting
they couldn't have been crusting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I crust?
could you crust?
could she crust?
could we crust?
could you crust?
could they crust? 	could I be crusting?
could you be crusting?
could she be crusting?
could we be crusting?
could you be crusting?
could they be crusting? 	could I have crusted?
could you have crusted?
could she have crusted?
could we have crusted?
could you have crusted?
could they have crusted? 	could I have been crusting?
could you have been crusting?
could she have been crusting?
could we have been crusting?
could you have been crusting?
could they have been crusting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I crust?
couldn't you crust?
couldn't she crust?
couldn't we crust?
couldn't you crust?
couldn't they crust? 	couldn't I be crusting?
couldn't you be crusting?
couldn't she be crusting?
couldn't we be crusting?
couldn't you be crusting?
couldn't they be crusting? 	couldn't I have crusted?
couldn't you have crusted?
couldn't she have crusted?
couldn't we have crusted?
couldn't you have crusted?
couldn't they have crusted? 	couldn't I have been crusting?
couldn't you have been crusting?
couldn't she have been crusting?
couldn't we have been crusting?
couldn't you have been crusting?
couldn't they have been crusting?