could mushroom
Verbe régulier : mushroom - mushroomed- mushroomed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could mushroom
you could mushroom
she could mushroom
we could mushroom
you could mushroom
they could mushroom 	I could be mushrooming
you could be mushrooming
she could be mushrooming
we could be mushrooming
you could be mushrooming
they could be mushrooming	I could have mushroomed
you could have mushroomed
she could have mushroomed
we could have mushroomed
you could have mushroomed
they could have mushroomed	I could have been mushrooming
you could have been mushrooming
she could have been mushrooming
we could have been mushrooming
you could have been mushrooming
they could have been mushrooming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not mushroom
you could not mushroom
she could not mushroom
we could not mushroom
you could not mushroom
they could not mushroom 	I could not be mushrooming
you could not be mushrooming
she could not be mushrooming
we could not be mushrooming
you could not be mushrooming
they could not be mushrooming	I could not have mushroomed
you could not have mushroomed
she could not have mushroomed
we could not have mushroomed
you could not have mushroomed
they could not have mushroomed	I could not have been mushrooming
you could not have been mushrooming
she could not have been mushrooming
we could not have been mushrooming
you could not have been mushrooming
they could not have been mushrooming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I mushroom?
could you mushroom?
could she mushroom?
could we mushroom?
could you mushroom?
could they mushroom? 	could I be mushrooming?
could you be mushrooming?
could she be mushrooming?
could we be mushrooming?
could you be mushrooming?
could they be mushrooming? 	could I have mushroomed?
could you have mushroomed?
could she have mushroomed?
could we have mushroomed?
could you have mushroomed?
could they have mushroomed? 	could I have been mushrooming?
could you have been mushrooming?
could she have been mushrooming?
could we have been mushrooming?
could you have been mushrooming?
could they have been mushrooming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not mushroom?
could you not mushroom?
could she not mushroom?
could we not mushroom?
could you not mushroom?
could they not mushroom? 	could I not be mushrooming?
could you not be mushrooming?
could she not be mushrooming?
could we not be mushrooming?
could you not be mushrooming?
could they not be mushrooming? 	could I not have mushroomed?
could you not have mushroomed?
could she not have mushroomed?
could we not have mushroomed?
could you not have mushroomed?
could they not have mushroomed? 	could I not have been mushrooming?
could you not have been mushrooming?
could she not have been mushrooming?
could we not have been mushrooming?
could you not have been mushrooming?
could they not have been mushrooming?