could plateau
Verbe régulier : plateau - plateaued- plateaued

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could plateau
you could plateau
she could plateau
we could plateau
you could plateau
they could plateau 	I could be plateauing
you could be plateauing
she could be plateauing
we could be plateauing
you could be plateauing
they could be plateauing	I could have plateaued
you could have plateaued
she could have plateaued
we could have plateaued
you could have plateaued
they could have plateaued	I could have been plateauing
you could have been plateauing
she could have been plateauing
we could have been plateauing
you could have been plateauing
they could have been plateauing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't plateau
you couldn't plateau
she couldn't plateau
we couldn't plateau
you couldn't plateau
they couldn't plateau 	I couldn't be plateauing
you couldn't be plateauing
she couldn't be plateauing
we couldn't be plateauing
you couldn't be plateauing
they couldn't be plateauing	I couldn't have plateaued
you couldn't have plateaued
she couldn't have plateaued
we couldn't have plateaued
you couldn't have plateaued
they couldn't have plateaued	I couldn't have been plateauing
you couldn't have been plateauing
she couldn't have been plateauing
we couldn't have been plateauing
you couldn't have been plateauing
they couldn't have been plateauing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I plateau?
could you plateau?
could she plateau?
could we plateau?
could you plateau?
could they plateau? 	could I be plateauing?
could you be plateauing?
could she be plateauing?
could we be plateauing?
could you be plateauing?
could they be plateauing? 	could I have plateaued?
could you have plateaued?
could she have plateaued?
could we have plateaued?
could you have plateaued?
could they have plateaued? 	could I have been plateauing?
could you have been plateauing?
could she have been plateauing?
could we have been plateauing?
could you have been plateauing?
could they have been plateauing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I plateau?
couldn't you plateau?
couldn't she plateau?
couldn't we plateau?
couldn't you plateau?
couldn't they plateau? 	couldn't I be plateauing?
couldn't you be plateauing?
couldn't she be plateauing?
couldn't we be plateauing?
couldn't you be plateauing?
couldn't they be plateauing? 	couldn't I have plateaued?
couldn't you have plateaued?
couldn't she have plateaued?
couldn't we have plateaued?
couldn't you have plateaued?
couldn't they have plateaued? 	couldn't I have been plateauing?
couldn't you have been plateauing?
couldn't she have been plateauing?
couldn't we have been plateauing?
couldn't you have been plateauing?
couldn't they have been plateauing?