can serge
Regular verb: serge - serged- serged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can serge
you can serge
she can serge
we can serge
you can serge
they can serge 	I can be serging
you can be serging
she can be serging
we can be serging
you can be serging
they can be serging	I can have serged
you can have serged
she can have serged
we can have serged
you can have serged
they can have serged	I can have been serging
you can have been serging
she can have been serging
we can have been serging
you can have been serging
they can have been serging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot serge
you cannot serge
she cannot serge
we cannot serge
you cannot serge
they cannot serge 	I cannot be serging
you cannot be serging
she cannot be serging
we cannot be serging
you cannot be serging
they cannot be serging	I cannot have serged
you cannot have serged
she cannot have serged
we cannot have serged
you cannot have serged
they cannot have serged	I cannot have been serging
you cannot have been serging
she cannot have been serging
we cannot have been serging
you cannot have been serging
they cannot have been serging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I serge?
can you serge?
can she serge?
can we serge?
can you serge?
can they serge? 	can I be serging?
can you be serging?
can she be serging?
can we be serging?
can you be serging?
can they be serging? 	can I have serged?
can you have serged?
can she have serged?
can we have serged?
can you have serged?
can they have serged? 	can I have been serging?
can you have been serging?
can she have been serging?
can we have been serging?
can you have been serging?
can they have been serging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not serge?
can you not serge?
can she not serge?
can we not serge?
can you not serge?
can they not serge? 	can I not be serging?
can you not be serging?
can she not be serging?
can we not be serging?
can you not be serging?
can they not be serging? 	can I not have serged?
can you not have serged?
can she not have serged?
can we not have serged?
can you not have serged?
can they not have serged? 	can I not have been serging?
can you not have been serging?
can she not have been serging?
can we not have been serging?
can you not have been serging?
can they not have been serging?