could luster
Verbe régulier : luster - lustered- lustered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could luster
you could luster
she could luster
we could luster
you could luster
they could luster 	I could be lustering
you could be lustering
she could be lustering
we could be lustering
you could be lustering
they could be lustering	I could have lustered
you could have lustered
she could have lustered
we could have lustered
you could have lustered
they could have lustered	I could have been lustering
you could have been lustering
she could have been lustering
we could have been lustering
you could have been lustering
they could have been lustering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't luster
you couldn't luster
she couldn't luster
we couldn't luster
you couldn't luster
they couldn't luster 	I couldn't be lustering
you couldn't be lustering
she couldn't be lustering
we couldn't be lustering
you couldn't be lustering
they couldn't be lustering	I couldn't have lustered
you couldn't have lustered
she couldn't have lustered
we couldn't have lustered
you couldn't have lustered
they couldn't have lustered	I couldn't have been lustering
you couldn't have been lustering
she couldn't have been lustering
we couldn't have been lustering
you couldn't have been lustering
they couldn't have been lustering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I luster?
could you luster?
could she luster?
could we luster?
could you luster?
could they luster? 	could I be lustering?
could you be lustering?
could she be lustering?
could we be lustering?
could you be lustering?
could they be lustering? 	could I have lustered?
could you have lustered?
could she have lustered?
could we have lustered?
could you have lustered?
could they have lustered? 	could I have been lustering?
could you have been lustering?
could she have been lustering?
could we have been lustering?
could you have been lustering?
could they have been lustering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I luster?
couldn't you luster?
couldn't she luster?
couldn't we luster?
couldn't you luster?
couldn't they luster? 	couldn't I be lustering?
couldn't you be lustering?
couldn't she be lustering?
couldn't we be lustering?
couldn't you be lustering?
couldn't they be lustering? 	couldn't I have lustered?
couldn't you have lustered?
couldn't she have lustered?
couldn't we have lustered?
couldn't you have lustered?
couldn't they have lustered? 	couldn't I have been lustering?
couldn't you have been lustering?
couldn't she have been lustering?
couldn't we have been lustering?
couldn't you have been lustering?
couldn't they have been lustering?