English verb conjugation
CAN HELLO

Regular verb: hello - helloed - helloed

Affirmation

Simple form	V-ing form
I can hello you can hello he can hello we can hello you can hello they can hello	I can be helloing you can be helloing he can be helloing we can be helloing you can be helloing they can be helloing
Perfect	V-ing perfect
I can have helloed you can have helloed he can have helloed we can have helloed you can have helloed they can have helloed	I can have been helloing you can have been helloing he can have been helloing we can have been helloing you can have been helloing they can have been helloing

Negation

Simple form	V-ing form
I can't hello you can't hello he can't hello we can't hello you can't hello they can't hello	I can't be helloing you can't be helloing he can't be helloing we can't be helloing you can't be helloing they can't be helloing
Perfect	V-ing perfect
I can't have helloed you can't have helloed he can't have helloed we can't have helloed you can't have helloed they can't have helloed	I can't have been helloing you can't have been helloing he can't have been helloing we can't have been helloing you can't have been helloing they can't have been helloing

Interrogative form

Simple form	V-ing form
can I hello? can you hello? can he hello? can we hello? can you hello? can they hello?	can I be helloing? can you be helloing? can he be helloing? can we be helloing? can you be helloing? can they be helloing?
Perfect	V-ing perfect
can I have helloed? can you have helloed? can he have helloed? can we have helloed? can you have helloed? can they have helloed?	can I have been helloing? can you have been helloing? can he have been helloing? can we have been helloing? can you have been helloing? can they have been helloing?

Interro-negative form

Simple form	V-ing form
can't I hello? can't you hello? can't he hello? can't we hello? can't you hello? can't they hello?	can't I be helloing? can't you be helloing? can't he be helloing? can't we be helloing? can't you be helloing? can't they be helloing?
Perfect	V-ing perfect
can't I have helloed? can't you have helloed? can't he have helloed? can't we have helloed? can't you have helloed? can't they have helloed?	can't I have been helloing? can't you have been helloing? can't he have been helloing? can't we have been helloing? can't you have been helloing? can't they have been helloing?