can recur
Regular verb: recur - recurred- recurred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can recur
you can recur
she can recur
we can recur
you can recur
they can recur 	I can be recurring
you can be recurring
she can be recurring
we can be recurring
you can be recurring
they can be recurring	I can have recurred
you can have recurred
she can have recurred
we can have recurred
you can have recurred
they can have recurred	I can have been recurring
you can have been recurring
she can have been recurring
we can have been recurring
you can have been recurring
they can have been recurring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot recur
you cannot recur
she cannot recur
we cannot recur
you cannot recur
they cannot recur 	I cannot be recurring
you cannot be recurring
she cannot be recurring
we cannot be recurring
you cannot be recurring
they cannot be recurring	I cannot have recurred
you cannot have recurred
she cannot have recurred
we cannot have recurred
you cannot have recurred
they cannot have recurred	I cannot have been recurring
you cannot have been recurring
she cannot have been recurring
we cannot have been recurring
you cannot have been recurring
they cannot have been recurring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I recur?
can you recur?
can she recur?
can we recur?
can you recur?
can they recur? 	can I be recurring?
can you be recurring?
can she be recurring?
can we be recurring?
can you be recurring?
can they be recurring? 	can I have recurred?
can you have recurred?
can she have recurred?
can we have recurred?
can you have recurred?
can they have recurred? 	can I have been recurring?
can you have been recurring?
can she have been recurring?
can we have been recurring?
can you have been recurring?
can they have been recurring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not recur?
can you not recur?
can she not recur?
can we not recur?
can you not recur?
can they not recur? 	can I not be recurring?
can you not be recurring?
can she not be recurring?
can we not be recurring?
can you not be recurring?
can they not be recurring? 	can I not have recurred?
can you not have recurred?
can she not have recurred?
can we not have recurred?
can you not have recurred?
can they not have recurred? 	can I not have been recurring?
can you not have been recurring?
can she not have been recurring?
can we not have been recurring?
can you not have been recurring?
can they not have been recurring?