can proceed
Regular verb: proceed - proceeded- proceeded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can proceed
you can proceed
she can proceed
we can proceed
you can proceed
they can proceed 	I can be proceeding
you can be proceeding
she can be proceeding
we can be proceeding
you can be proceeding
they can be proceeding	I can have proceeded
you can have proceeded
she can have proceeded
we can have proceeded
you can have proceeded
they can have proceeded	I can have been proceeding
you can have been proceeding
she can have been proceeding
we can have been proceeding
you can have been proceeding
they can have been proceeding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot proceed
you cannot proceed
she cannot proceed
we cannot proceed
you cannot proceed
they cannot proceed 	I cannot be proceeding
you cannot be proceeding
she cannot be proceeding
we cannot be proceeding
you cannot be proceeding
they cannot be proceeding	I cannot have proceeded
you cannot have proceeded
she cannot have proceeded
we cannot have proceeded
you cannot have proceeded
they cannot have proceeded	I cannot have been proceeding
you cannot have been proceeding
she cannot have been proceeding
we cannot have been proceeding
you cannot have been proceeding
they cannot have been proceeding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I proceed?
can you proceed?
can she proceed?
can we proceed?
can you proceed?
can they proceed? 	can I be proceeding?
can you be proceeding?
can she be proceeding?
can we be proceeding?
can you be proceeding?
can they be proceeding? 	can I have proceeded?
can you have proceeded?
can she have proceeded?
can we have proceeded?
can you have proceeded?
can they have proceeded? 	can I have been proceeding?
can you have been proceeding?
can she have been proceeding?
can we have been proceeding?
can you have been proceeding?
can they have been proceeding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not proceed?
can you not proceed?
can she not proceed?
can we not proceed?
can you not proceed?
can they not proceed? 	can I not be proceeding?
can you not be proceeding?
can she not be proceeding?
can we not be proceeding?
can you not be proceeding?
can they not be proceeding? 	can I not have proceeded?
can you not have proceeded?
can she not have proceeded?
can we not have proceeded?
can you not have proceeded?
can they not have proceeded? 	can I not have been proceeding?
can you not have been proceeding?
can she not have been proceeding?
can we not have been proceeding?
can you not have been proceeding?
can they not have been proceeding?