could yaup
Regular verb: yaup - yauped- yauped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could yaup
you could yaup
he could yaup
we could yaup
you could yaup
they could yaup 	I could be yauping
you could be yauping
he could be yauping
we could be yauping
you could be yauping
they could be yauping	I could have yauped
you could have yauped
he could have yauped
we could have yauped
you could have yauped
they could have yauped	I could have been yauping
you could have been yauping
he could have been yauping
we could have been yauping
you could have been yauping
they could have been yauping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't yaup
you couldn't yaup
he couldn't yaup
we couldn't yaup
you couldn't yaup
they couldn't yaup 	I couldn't be yauping
you couldn't be yauping
he couldn't be yauping
we couldn't be yauping
you couldn't be yauping
they couldn't be yauping	I couldn't have yauped
you couldn't have yauped
he couldn't have yauped
we couldn't have yauped
you couldn't have yauped
they couldn't have yauped	I couldn't have been yauping
you couldn't have been yauping
he couldn't have been yauping
we couldn't have been yauping
you couldn't have been yauping
they couldn't have been yauping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I yaup?
could you yaup?
could he yaup?
could we yaup?
could you yaup?
could they yaup? 	could I be yauping?
could you be yauping?
could he be yauping?
could we be yauping?
could you be yauping?
could they be yauping? 	could I have yauped?
could you have yauped?
could he have yauped?
could we have yauped?
could you have yauped?
could they have yauped? 	could I have been yauping?
could you have been yauping?
could he have been yauping?
could we have been yauping?
could you have been yauping?
could they have been yauping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I yaup?
couldn't you yaup?
couldn't he yaup?
couldn't we yaup?
couldn't you yaup?
couldn't they yaup? 	couldn't I be yauping?
couldn't you be yauping?
couldn't he be yauping?
couldn't we be yauping?
couldn't you be yauping?
couldn't they be yauping? 	couldn't I have yauped?
couldn't you have yauped?
couldn't he have yauped?
couldn't we have yauped?
couldn't you have yauped?
couldn't they have yauped? 	couldn't I have been yauping?
couldn't you have been yauping?
couldn't he have been yauping?
couldn't we have been yauping?
couldn't you have been yauping?
couldn't they have been yauping?