could yuppify
Regular verb: yuppify - yuppified- yuppified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could yuppify
you could yuppify
he could yuppify
we could yuppify
you could yuppify
they could yuppify 	I could be yuppifying
you could be yuppifying
he could be yuppifying
we could be yuppifying
you could be yuppifying
they could be yuppifying	I could have yuppified
you could have yuppified
he could have yuppified
we could have yuppified
you could have yuppified
they could have yuppified	I could have been yuppifying
you could have been yuppifying
he could have been yuppifying
we could have been yuppifying
you could have been yuppifying
they could have been yuppifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not yuppify
you could not yuppify
he could not yuppify
we could not yuppify
you could not yuppify
they could not yuppify 	I could not be yuppifying
you could not be yuppifying
he could not be yuppifying
we could not be yuppifying
you could not be yuppifying
they could not be yuppifying	I could not have yuppified
you could not have yuppified
he could not have yuppified
we could not have yuppified
you could not have yuppified
they could not have yuppified	I could not have been yuppifying
you could not have been yuppifying
he could not have been yuppifying
we could not have been yuppifying
you could not have been yuppifying
they could not have been yuppifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I yuppify?
could you yuppify?
could he yuppify?
could we yuppify?
could you yuppify?
could they yuppify? 	could I be yuppifying?
could you be yuppifying?
could he be yuppifying?
could we be yuppifying?
could you be yuppifying?
could they be yuppifying? 	could I have yuppified?
could you have yuppified?
could he have yuppified?
could we have yuppified?
could you have yuppified?
could they have yuppified? 	could I have been yuppifying?
could you have been yuppifying?
could he have been yuppifying?
could we have been yuppifying?
could you have been yuppifying?
could they have been yuppifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not yuppify?
could you not yuppify?
could he not yuppify?
could we not yuppify?
could you not yuppify?
could they not yuppify? 	could I not be yuppifying?
could you not be yuppifying?
could he not be yuppifying?
could we not be yuppifying?
could you not be yuppifying?
could they not be yuppifying? 	could I not have yuppified?
could you not have yuppified?
could he not have yuppified?
could we not have yuppified?
could you not have yuppified?
could they not have yuppified? 	could I not have been yuppifying?
could you not have been yuppifying?
could he not have been yuppifying?
could we not have been yuppifying?
could you not have been yuppifying?
could they not have been yuppifying?