could grummet
Verbe régulier : grummet - grummeted- grummeted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could grummet
you could grummet
she could grummet
we could grummet
you could grummet
they could grummet 	I could be grummeting
you could be grummeting
she could be grummeting
we could be grummeting
you could be grummeting
they could be grummeting	I could have grummeted
you could have grummeted
she could have grummeted
we could have grummeted
you could have grummeted
they could have grummeted	I could have been grummeting
you could have been grummeting
she could have been grummeting
we could have been grummeting
you could have been grummeting
they could have been grummeting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't grummet
you couldn't grummet
she couldn't grummet
we couldn't grummet
you couldn't grummet
they couldn't grummet 	I couldn't be grummeting
you couldn't be grummeting
she couldn't be grummeting
we couldn't be grummeting
you couldn't be grummeting
they couldn't be grummeting	I couldn't have grummeted
you couldn't have grummeted
she couldn't have grummeted
we couldn't have grummeted
you couldn't have grummeted
they couldn't have grummeted	I couldn't have been grummeting
you couldn't have been grummeting
she couldn't have been grummeting
we couldn't have been grummeting
you couldn't have been grummeting
they couldn't have been grummeting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I grummet?
could you grummet?
could she grummet?
could we grummet?
could you grummet?
could they grummet? 	could I be grummeting?
could you be grummeting?
could she be grummeting?
could we be grummeting?
could you be grummeting?
could they be grummeting? 	could I have grummeted?
could you have grummeted?
could she have grummeted?
could we have grummeted?
could you have grummeted?
could they have grummeted? 	could I have been grummeting?
could you have been grummeting?
could she have been grummeting?
could we have been grummeting?
could you have been grummeting?
could they have been grummeting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I grummet?
couldn't you grummet?
couldn't she grummet?
couldn't we grummet?
couldn't you grummet?
couldn't they grummet? 	couldn't I be grummeting?
couldn't you be grummeting?
couldn't she be grummeting?
couldn't we be grummeting?
couldn't you be grummeting?
couldn't they be grummeting? 	couldn't I have grummeted?
couldn't you have grummeted?
couldn't she have grummeted?
couldn't we have grummeted?
couldn't you have grummeted?
couldn't they have grummeted? 	couldn't I have been grummeting?
couldn't you have been grummeting?
couldn't she have been grummeting?
couldn't we have been grummeting?
couldn't you have been grummeting?
couldn't they have been grummeting?