could land
Verbe régulier : land - landed- landed
Traduction française : atterrir - poser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could land
you could land
he could land
we could land
you could land
they could land 	I could be landing
you could be landing
he could be landing
we could be landing
you could be landing
they could be landing	I could have landed
you could have landed
he could have landed
we could have landed
you could have landed
they could have landed	I could have been landing
you could have been landing
he could have been landing
we could have been landing
you could have been landing
they could have been landing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't land
you couldn't land
he couldn't land
we couldn't land
you couldn't land
they couldn't land 	I couldn't be landing
you couldn't be landing
he couldn't be landing
we couldn't be landing
you couldn't be landing
they couldn't be landing	I couldn't have landed
you couldn't have landed
he couldn't have landed
we couldn't have landed
you couldn't have landed
they couldn't have landed	I couldn't have been landing
you couldn't have been landing
he couldn't have been landing
we couldn't have been landing
you couldn't have been landing
they couldn't have been landing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I land?
could you land?
could he land?
could we land?
could you land?
could they land? 	could I be landing?
could you be landing?
could he be landing?
could we be landing?
could you be landing?
could they be landing? 	could I have landed?
could you have landed?
could he have landed?
could we have landed?
could you have landed?
could they have landed? 	could I have been landing?
could you have been landing?
could he have been landing?
could we have been landing?
could you have been landing?
could they have been landing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I land?
couldn't you land?
couldn't he land?
couldn't we land?
couldn't you land?
couldn't they land? 	couldn't I be landing?
couldn't you be landing?
couldn't he be landing?
couldn't we be landing?
couldn't you be landing?
couldn't they be landing? 	couldn't I have landed?
couldn't you have landed?
couldn't he have landed?
couldn't we have landed?
couldn't you have landed?
couldn't they have landed? 	couldn't I have been landing?
couldn't you have been landing?
couldn't he have been landing?
couldn't we have been landing?
couldn't you have been landing?
couldn't they have been landing?