could yap
Verbo regolare: yap - yapped- yapped

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could yap
you could yap
he could yap
we could yap
you could yap
they could yap 	I could be yapping
you could be yapping
he could be yapping
we could be yapping
you could be yapping
they could be yapping	I could have yapped
you could have yapped
he 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
he could have been yapping
we could have been yapping
you could have been yapping
they could have been yapping	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't yap
you couldn't yap
he 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
he 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
he 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
he couldn't have been yapping
we couldn't have been yapping
you couldn't have been yapping
they couldn't have been yapping	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I yap?
could you yap?
could he yap?
could we yap?
could you yap?
could they yap? 	could I be yapping?
could you be yapping?
could he be yapping?
could we be yapping?
could you be yapping?
could they be yapping? 	could I have yapped?
could you have yapped?
could he 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 he have been yapping?
could we have been yapping?
could you have been yapping?
could they have been yapping? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I yap?
couldn't you yap?
couldn't he 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 he 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 he 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 he have been yapping?
couldn't we have been yapping?
couldn't you have been yapping?
couldn't they have been yapping?