could yap
Verbe régulier : yap - yapped- yapped
Traduction française : japper - jacasser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could yap
you could yap
she could yap
we could yap
you could yap
they could yap 	I could be yapping
you could be yapping
she could be yapping
we could be yapping
you could be yapping
they could be yapping	I could have yapped
you could have yapped
she could have yapped
we could have yapped
you could have yapped
they could have yapped	I could have been yapping
you could have been yapping
she could have been yapping
we could have been yapping
you could have been yapping
they could have been yapping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't yap
you couldn't yap
she couldn't yap
we couldn't yap
you couldn't yap
they couldn't yap 	I couldn't be yapping
you couldn't be yapping
she couldn't be yapping
we couldn't be yapping
you couldn't be yapping
they couldn't be yapping	I couldn't have yapped
you couldn't have yapped
she couldn't have yapped
we couldn't have yapped
you couldn't have yapped
they couldn't have yapped	I couldn't have been yapping
you couldn't have been yapping
she couldn't have been yapping
we couldn't have been yapping
you couldn't have been yapping
they couldn't have been yapping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I yap?
could you yap?
could she yap?
could we yap?
could you yap?
could they yap? 	could I be yapping?
could you be yapping?
could she be yapping?
could we be yapping?
could you be yapping?
could they be yapping? 	could I have yapped?
could you have yapped?
could she have yapped?
could we have yapped?
could you have yapped?
could they have yapped? 	could I have been yapping?
could you have been yapping?
could she have been yapping?
could we have been yapping?
could you have been yapping?
could they have been yapping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I yap?
couldn't you yap?
couldn't she yap?
couldn't we yap?
couldn't you yap?
couldn't they yap? 	couldn't I be yapping?
couldn't you be yapping?
couldn't she be yapping?
couldn't we be yapping?
couldn't you be yapping?
couldn't they be yapping? 	couldn't I have yapped?
couldn't you have yapped?
couldn't she have yapped?
couldn't we have yapped?
couldn't you have yapped?
couldn't they have yapped? 	couldn't I have been yapping?
couldn't you have been yapping?
couldn't she have been yapping?
couldn't we have been yapping?
couldn't you have been yapping?
couldn't they have been yapping?