could tumble
Verbe régulier : tumble - tumbled- tumbled
Traduction française : faire une chute - renverser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could tumble
you could tumble
he could tumble
we could tumble
you could tumble
they could tumble 	I could be tumbling
you could be tumbling
he could be tumbling
we could be tumbling
you could be tumbling
they could be tumbling	I could have tumbled
you could have tumbled
he could have tumbled
we could have tumbled
you could have tumbled
they could have tumbled	I could have been tumbling
you could have been tumbling
he could have been tumbling
we could have been tumbling
you could have been tumbling
they could have been tumbling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't tumble
you couldn't tumble
he couldn't tumble
we couldn't tumble
you couldn't tumble
they couldn't tumble 	I couldn't be tumbling
you couldn't be tumbling
he couldn't be tumbling
we couldn't be tumbling
you couldn't be tumbling
they couldn't be tumbling	I couldn't have tumbled
you couldn't have tumbled
he couldn't have tumbled
we couldn't have tumbled
you couldn't have tumbled
they couldn't have tumbled	I couldn't have been tumbling
you couldn't have been tumbling
he couldn't have been tumbling
we couldn't have been tumbling
you couldn't have been tumbling
they couldn't have been tumbling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I tumble?
could you tumble?
could he tumble?
could we tumble?
could you tumble?
could they tumble? 	could I be tumbling?
could you be tumbling?
could he be tumbling?
could we be tumbling?
could you be tumbling?
could they be tumbling? 	could I have tumbled?
could you have tumbled?
could he have tumbled?
could we have tumbled?
could you have tumbled?
could they have tumbled? 	could I have been tumbling?
could you have been tumbling?
could he have been tumbling?
could we have been tumbling?
could you have been tumbling?
could they have been tumbling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I tumble?
couldn't you tumble?
couldn't he tumble?
couldn't we tumble?
couldn't you tumble?
couldn't they tumble? 	couldn't I be tumbling?
couldn't you be tumbling?
couldn't he be tumbling?
couldn't we be tumbling?
couldn't you be tumbling?
couldn't they be tumbling? 	couldn't I have tumbled?
couldn't you have tumbled?
couldn't he have tumbled?
couldn't we have tumbled?
couldn't you have tumbled?
couldn't they have tumbled? 	couldn't I have been tumbling?
couldn't you have been tumbling?
couldn't he have been tumbling?
couldn't we have been tumbling?
couldn't you have been tumbling?
couldn't they have been tumbling?