English verb conjugation
COULD YUPPIFY

Regular verb: yuppify - yuppified - yuppified

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I couldn't yuppify you couldn't yuppify he couldn't yuppify we couldn't yuppify you couldn't yuppify they couldn't yuppify	I couldn't be yuppifying you couldn't be yuppifying he couldn't be yuppifying we couldn't be yuppifying you couldn't be yuppifying they couldn't be yuppifying
Perfect	V-ing perfect
I couldn't have yuppified you couldn't have yuppified he couldn't have yuppified we couldn't have yuppified you couldn't have yuppified they couldn't have yuppified	I couldn't have been yuppifying you couldn't have been yuppifying he couldn't have been yuppifying we couldn't have been yuppifying you couldn't have been yuppifying they couldn't have been yuppifying

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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
couldn't I yuppify? couldn't you yuppify? couldn't he yuppify? couldn't we yuppify? couldn't you yuppify? couldn't they yuppify?	couldn't I be yuppifying? couldn't you be yuppifying? couldn't he be yuppifying? couldn't we be yuppifying? couldn't you be yuppifying? couldn't they be yuppifying?
Perfect	V-ing perfect
couldn't I have yuppified? couldn't you have yuppified? couldn't he have yuppified? couldn't we have yuppified? couldn't you have yuppified? couldn't they have yuppified?	couldn't I have been yuppifying? couldn't you have been yuppifying? couldn't he have been yuppifying? couldn't we have been yuppifying? couldn't you have been yuppifying? couldn't they have been yuppifying?