could sleave
Verbe régulier : sleave - sleaved- sleaved

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could sleave
you could sleave
she could sleave
we could sleave
you could sleave
they could sleave 	I could be sleaving
you could be sleaving
she could be sleaving
we could be sleaving
you could be sleaving
they could be sleaving	I could have sleaved
you could have sleaved
she could have sleaved
we could have sleaved
you could have sleaved
they could have sleaved	I could have been sleaving
you could have been sleaving
she could have been sleaving
we could have been sleaving
you could have been sleaving
they could have been sleaving	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't sleave
you couldn't sleave
she couldn't sleave
we couldn't sleave
you couldn't sleave
they couldn't sleave 	I couldn't be sleaving
you couldn't be sleaving
she couldn't be sleaving
we couldn't be sleaving
you couldn't be sleaving
they couldn't be sleaving	I couldn't have sleaved
you couldn't have sleaved
she couldn't have sleaved
we couldn't have sleaved
you couldn't have sleaved
they couldn't have sleaved	I couldn't have been sleaving
you couldn't have been sleaving
she couldn't have been sleaving
we couldn't have been sleaving
you couldn't have been sleaving
they couldn't have been sleaving	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I sleave?
could you sleave?
could she sleave?
could we sleave?
could you sleave?
could they sleave? 	could I be sleaving?
could you be sleaving?
could she be sleaving?
could we be sleaving?
could you be sleaving?
could they be sleaving? 	could I have sleaved?
could you have sleaved?
could she have sleaved?
could we have sleaved?
could you have sleaved?
could they have sleaved? 	could I have been sleaving?
could you have been sleaving?
could she have been sleaving?
could we have been sleaving?
could you have been sleaving?
could they have been sleaving? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I sleave?
couldn't you sleave?
couldn't she sleave?
couldn't we sleave?
couldn't you sleave?
couldn't they sleave? 	couldn't I be sleaving?
couldn't you be sleaving?
couldn't she be sleaving?
couldn't we be sleaving?
couldn't you be sleaving?
couldn't they be sleaving? 	couldn't I have sleaved?
couldn't you have sleaved?
couldn't she have sleaved?
couldn't we have sleaved?
couldn't you have sleaved?
couldn't they have sleaved? 	couldn't I have been sleaving?
couldn't you have been sleaving?
couldn't she have been sleaving?
couldn't we have been sleaving?
couldn't you have been sleaving?
couldn't they have been sleaving?