can forge
Regular verb: forge - forged- forged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can forge
you can forge
he can forge
we can forge
you can forge
they can forge 	I can be forging
you can be forging
he can be forging
we can be forging
you can be forging
they can be forging	I can have forged
you can have forged
he can have forged
we can have forged
you can have forged
they can have forged	I can have been forging
you can have been forging
he can have been forging
we can have been forging
you can have been forging
they can have been forging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot forge
you cannot forge
he cannot forge
we cannot forge
you cannot forge
they cannot forge 	I cannot be forging
you cannot be forging
he cannot be forging
we cannot be forging
you cannot be forging
they cannot be forging	I cannot have forged
you cannot have forged
he cannot have forged
we cannot have forged
you cannot have forged
they cannot have forged	I cannot have been forging
you cannot have been forging
he cannot have been forging
we cannot have been forging
you cannot have been forging
they cannot have been forging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I forge?
can you forge?
can he forge?
can we forge?
can you forge?
can they forge? 	can I be forging?
can you be forging?
can he be forging?
can we be forging?
can you be forging?
can they be forging? 	can I have forged?
can you have forged?
can he have forged?
can we have forged?
can you have forged?
can they have forged? 	can I have been forging?
can you have been forging?
can he have been forging?
can we have been forging?
can you have been forging?
can they have been forging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not forge?
can you not forge?
can he not forge?
can we not forge?
can you not forge?
can they not forge? 	can I not be forging?
can you not be forging?
can he not be forging?
can we not be forging?
can you not be forging?
can they not be forging? 	can I not have forged?
can you not have forged?
can he not have forged?
can we not have forged?
can you not have forged?
can they not have forged? 	can I not have been forging?
can you not have been forging?
can he not have been forging?
can we not have been forging?
can you not have been forging?
can they not have been forging?