can protest
Regular verb: protest - protested- protested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can protest
you can protest
he can protest
we can protest
you can protest
they can protest 	I can be protesting
you can be protesting
he can be protesting
we can be protesting
you can be protesting
they can be protesting	I can have protested
you can have protested
he can have protested
we can have protested
you can have protested
they can have protested	I can have been protesting
you can have been protesting
he can have been protesting
we can have been protesting
you can have been protesting
they can have been protesting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't protest
you can't protest
he can't protest
we can't protest
you can't protest
they can't protest 	I can't be protesting
you can't be protesting
he can't be protesting
we can't be protesting
you can't be protesting
they can't be protesting	I can't have protested
you can't have protested
he can't have protested
we can't have protested
you can't have protested
they can't have protested	I can't have been protesting
you can't have been protesting
he can't have been protesting
we can't have been protesting
you can't have been protesting
they can't have been protesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I protest?
can you protest?
can he protest?
can we protest?
can you protest?
can they protest? 	can I be protesting?
can you be protesting?
can he be protesting?
can we be protesting?
can you be protesting?
can they be protesting? 	can I have protested?
can you have protested?
can he have protested?
can we have protested?
can you have protested?
can they have protested? 	can I have been protesting?
can you have been protesting?
can he have been protesting?
can we have been protesting?
can you have been protesting?
can they have been protesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I protest?
can't you protest?
can't he protest?
can't we protest?
can't you protest?
can't they protest? 	can't I be protesting?
can't you be protesting?
can't he be protesting?
can't we be protesting?
can't you be protesting?
can't they be protesting? 	can't I have protested?
can't you have protested?
can't he have protested?
can't we have protested?
can't you have protested?
can't they have protested? 	can't I have been protesting?
can't you have been protesting?
can't he have been protesting?
can't we have been protesting?
can't you have been protesting?
can't they have been protesting?