English verb conjugation
CAN GREET

Regular verb: greet - greeted - greeted

Affirmation

Simple form	V-ing form
I can greet you can greet he can greet we can greet you can greet they can greet	I can be greeting you can be greeting he can be greeting we can be greeting you can be greeting they can be greeting
Perfect	V-ing perfect
I can have greeted you can have greeted he can have greeted we can have greeted you can have greeted they can have greeted	I can have been greeting you can have been greeting he can have been greeting we can have been greeting you can have been greeting they can have been greeting

Negation

Simple form	V-ing form
I can't greet you can't greet he can't greet we can't greet you can't greet they can't greet	I can't be greeting you can't be greeting he can't be greeting we can't be greeting you can't be greeting they can't be greeting
Perfect	V-ing perfect
I can't have greeted you can't have greeted he can't have greeted we can't have greeted you can't have greeted they can't have greeted	I can't have been greeting you can't have been greeting he can't have been greeting we can't have been greeting you can't have been greeting they can't have been greeting

Interrogative form

Simple form	V-ing form
can I greet? can you greet? can he greet? can we greet? can you greet? can they greet?	can I be greeting? can you be greeting? can he be greeting? can we be greeting? can you be greeting? can they be greeting?
Perfect	V-ing perfect
can I have greeted? can you have greeted? can he have greeted? can we have greeted? can you have greeted? can they have greeted?	can I have been greeting? can you have been greeting? can he have been greeting? can we have been greeting? can you have been greeting? can they have been greeting?

Interro-negative form

Simple form	V-ing form
can't I greet? can't you greet? can't he greet? can't we greet? can't you greet? can't they greet?	can't I be greeting? can't you be greeting? can't he be greeting? can't we be greeting? can't you be greeting? can't they be greeting?
Perfect	V-ing perfect
can't I have greeted? can't you have greeted? can't he have greeted? can't we have greeted? can't you have greeted? can't they have greeted?	can't I have been greeting? can't you have been greeting? can't he have been greeting? can't we have been greeting? can't you have been greeting? can't they have been greeting?