can push
Regular verb: push - pushed- pushed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can push
you can push
he can push
we can push
you can push
they can push 	I can be pushing
you can be pushing
he can be pushing
we can be pushing
you can be pushing
they can be pushing	I can have pushed
you can have pushed
he can have pushed
we can have pushed
you can have pushed
they can have pushed	I can have been pushing
you can have been pushing
he can have been pushing
we can have been pushing
you can have been pushing
they can have been pushing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't push
you can't push
he can't push
we can't push
you can't push
they can't push 	I can't be pushing
you can't be pushing
he can't be pushing
we can't be pushing
you can't be pushing
they can't be pushing	I can't have pushed
you can't have pushed
he can't have pushed
we can't have pushed
you can't have pushed
they can't have pushed	I can't have been pushing
you can't have been pushing
he can't have been pushing
we can't have been pushing
you can't have been pushing
they can't have been pushing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I push?
can you push?
can he push?
can we push?
can you push?
can they push? 	can I be pushing?
can you be pushing?
can he be pushing?
can we be pushing?
can you be pushing?
can they be pushing? 	can I have pushed?
can you have pushed?
can he have pushed?
can we have pushed?
can you have pushed?
can they have pushed? 	can I have been pushing?
can you have been pushing?
can he have been pushing?
can we have been pushing?
can you have been pushing?
can they have been pushing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I push?
can't you push?
can't he push?
can't we push?
can't you push?
can't they push? 	can't I be pushing?
can't you be pushing?
can't he be pushing?
can't we be pushing?
can't you be pushing?
can't they be pushing? 	can't I have pushed?
can't you have pushed?
can't he have pushed?
can't we have pushed?
can't you have pushed?
can't they have pushed? 	can't I have been pushing?
can't you have been pushing?
can't he have been pushing?
can't we have been pushing?
can't you have been pushing?
can't they have been pushing?