English verb conjugation
CAN YO-YO

Regular verb: yo-yo - yo-yoed - yo-yoed

Affirmation

Simple form	V-ing form
I can yo-yo you can yo-yo he can yo-yo we can yo-yo you can yo-yo they can yo-yo	I can be yo-yoing you can be yo-yoing he can be yo-yoing we can be yo-yoing you can be yo-yoing they can be yo-yoing
Perfect	V-ing perfect
I can have yo-yoed you can have yo-yoed he can have yo-yoed we can have yo-yoed you can have yo-yoed they can have yo-yoed	I can have been yo-yoing you can have been yo-yoing he can have been yo-yoing we can have been yo-yoing you can have been yo-yoing they can have been yo-yoing

Negation

Simple form	V-ing form
I can't yo-yo you can't yo-yo he can't yo-yo we can't yo-yo you can't yo-yo they can't yo-yo	I can't be yo-yoing you can't be yo-yoing he can't be yo-yoing we can't be yo-yoing you can't be yo-yoing they can't be yo-yoing
Perfect	V-ing perfect
I can't have yo-yoed you can't have yo-yoed he can't have yo-yoed we can't have yo-yoed you can't have yo-yoed they can't have yo-yoed	I can't have been yo-yoing you can't have been yo-yoing he can't have been yo-yoing we can't have been yo-yoing you can't have been yo-yoing they can't have been yo-yoing

Interrogative form

Simple form	V-ing form
can I yo-yo? can you yo-yo? can he yo-yo? can we yo-yo? can you yo-yo? can they yo-yo?	can I be yo-yoing? can you be yo-yoing? can he be yo-yoing? can we be yo-yoing? can you be yo-yoing? can they be yo-yoing?
Perfect	V-ing perfect
can I have yo-yoed? can you have yo-yoed? can he have yo-yoed? can we have yo-yoed? can you have yo-yoed? can they have yo-yoed?	can I have been yo-yoing? can you have been yo-yoing? can he have been yo-yoing? can we have been yo-yoing? can you have been yo-yoing? can they have been yo-yoing?

Interro-negative form

Simple form	V-ing form
can't I yo-yo? can't you yo-yo? can't he yo-yo? can't we yo-yo? can't you yo-yo? can't they yo-yo?	can't I be yo-yoing? can't you be yo-yoing? can't he be yo-yoing? can't we be yo-yoing? can't you be yo-yoing? can't they be yo-yoing?
Perfect	V-ing perfect
can't I have yo-yoed? can't you have yo-yoed? can't he have yo-yoed? can't we have yo-yoed? can't you have yo-yoed? can't they have yo-yoed?	can't I have been yo-yoing? can't you have been yo-yoing? can't he have been yo-yoing? can't we have been yo-yoing? can't you have been yo-yoing? can't they have been yo-yoing?