could countermarch
Verbe régulier : countermarch - countermarched- countermarched

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could countermarch
you could countermarch
she could countermarch
we could countermarch
you could countermarch
they could countermarch 	I could be countermarching
you could be countermarching
she could be countermarching
we could be countermarching
you could be countermarching
they could be countermarching	I could have countermarched
you could have countermarched
she could have countermarched
we could have countermarched
you could have countermarched
they could have countermarched	I could have been countermarching
you could have been countermarching
she could have been countermarching
we could have been countermarching
you could have been countermarching
they could have been countermarching	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't countermarch
you couldn't countermarch
she couldn't countermarch
we couldn't countermarch
you couldn't countermarch
they couldn't countermarch 	I couldn't be countermarching
you couldn't be countermarching
she couldn't be countermarching
we couldn't be countermarching
you couldn't be countermarching
they couldn't be countermarching	I couldn't have countermarched
you couldn't have countermarched
she couldn't have countermarched
we couldn't have countermarched
you couldn't have countermarched
they couldn't have countermarched	I couldn't have been countermarching
you couldn't have been countermarching
she couldn't have been countermarching
we couldn't have been countermarching
you couldn't have been countermarching
they couldn't have been countermarching	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I countermarch?
could you countermarch?
could she countermarch?
could we countermarch?
could you countermarch?
could they countermarch? 	could I be countermarching?
could you be countermarching?
could she be countermarching?
could we be countermarching?
could you be countermarching?
could they be countermarching? 	could I have countermarched?
could you have countermarched?
could she have countermarched?
could we have countermarched?
could you have countermarched?
could they have countermarched? 	could I have been countermarching?
could you have been countermarching?
could she have been countermarching?
could we have been countermarching?
could you have been countermarching?
could they have been countermarching? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I countermarch?
couldn't you countermarch?
couldn't she countermarch?
couldn't we countermarch?
couldn't you countermarch?
couldn't they countermarch? 	couldn't I be countermarching?
couldn't you be countermarching?
couldn't she be countermarching?
couldn't we be countermarching?
couldn't you be countermarching?
couldn't they be countermarching? 	couldn't I have countermarched?
couldn't you have countermarched?
couldn't she have countermarched?
couldn't we have countermarched?
couldn't you have countermarched?
couldn't they have countermarched? 	couldn't I have been countermarching?
couldn't you have been countermarching?
couldn't she have been countermarching?
couldn't we have been countermarching?
couldn't you have been countermarching?
couldn't they have been countermarching?