could whirr
Verbe régulier : whirr - whirred- whirred
Traduction française : bruire - ronronner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could whirr
you could whirr
she could whirr
we could whirr
you could whirr
they could whirr 	I could be whirring
you could be whirring
she could be whirring
we could be whirring
you could be whirring
they could be whirring	I could have whirred
you could have whirred
she could have whirred
we could have whirred
you could have whirred
they could have whirred	I could have been whirring
you could have been whirring
she could have been whirring
we could have been whirring
you could have been whirring
they could have been whirring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't whirr
you couldn't whirr
she couldn't whirr
we couldn't whirr
you couldn't whirr
they couldn't whirr 	I couldn't be whirring
you couldn't be whirring
she couldn't be whirring
we couldn't be whirring
you couldn't be whirring
they couldn't be whirring	I couldn't have whirred
you couldn't have whirred
she couldn't have whirred
we couldn't have whirred
you couldn't have whirred
they couldn't have whirred	I couldn't have been whirring
you couldn't have been whirring
she couldn't have been whirring
we couldn't have been whirring
you couldn't have been whirring
they couldn't have been whirring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I whirr?
could you whirr?
could she whirr?
could we whirr?
could you whirr?
could they whirr? 	could I be whirring?
could you be whirring?
could she be whirring?
could we be whirring?
could you be whirring?
could they be whirring? 	could I have whirred?
could you have whirred?
could she have whirred?
could we have whirred?
could you have whirred?
could they have whirred? 	could I have been whirring?
could you have been whirring?
could she have been whirring?
could we have been whirring?
could you have been whirring?
could they have been whirring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I whirr?
couldn't you whirr?
couldn't she whirr?
couldn't we whirr?
couldn't you whirr?
couldn't they whirr? 	couldn't I be whirring?
couldn't you be whirring?
couldn't she be whirring?
couldn't we be whirring?
couldn't you be whirring?
couldn't they be whirring? 	couldn't I have whirred?
couldn't you have whirred?
couldn't she have whirred?
couldn't we have whirred?
couldn't you have whirred?
couldn't they have whirred? 	couldn't I have been whirring?
couldn't you have been whirring?
couldn't she have been whirring?
couldn't we have been whirring?
couldn't you have been whirring?
couldn't they have been whirring?