can sponge
Regular verb: sponge - sponged- sponged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sponge
you can sponge
she can sponge
we can sponge
you can sponge
they can sponge 	I can be sponging
you can be sponging
she can be sponging
we can be sponging
you can be sponging
they can be sponging	I can have sponged
you can have sponged
she can have sponged
we can have sponged
you can have sponged
they can have sponged	I can have been sponging
you can have been sponging
she can have been sponging
we can have been sponging
you can have been sponging
they can have been sponging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't sponge
you can't sponge
she can't sponge
we can't sponge
you can't sponge
they can't sponge 	I can't be sponging
you can't be sponging
she can't be sponging
we can't be sponging
you can't be sponging
they can't be sponging	I can't have sponged
you can't have sponged
she can't have sponged
we can't have sponged
you can't have sponged
they can't have sponged	I can't have been sponging
you can't have been sponging
she can't have been sponging
we can't have been sponging
you can't have been sponging
they can't have been sponging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sponge?
can you sponge?
can she sponge?
can we sponge?
can you sponge?
can they sponge? 	can I be sponging?
can you be sponging?
can she be sponging?
can we be sponging?
can you be sponging?
can they be sponging? 	can I have sponged?
can you have sponged?
can she have sponged?
can we have sponged?
can you have sponged?
can they have sponged? 	can I have been sponging?
can you have been sponging?
can she have been sponging?
can we have been sponging?
can you have been sponging?
can they have been sponging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I sponge?
can't you sponge?
can't she sponge?
can't we sponge?
can't you sponge?
can't they sponge? 	can't I be sponging?
can't you be sponging?
can't she be sponging?
can't we be sponging?
can't you be sponging?
can't they be sponging? 	can't I have sponged?
can't you have sponged?
can't she have sponged?
can't we have sponged?
can't you have sponged?
can't they have sponged? 	can't I have been sponging?
can't you have been sponging?
can't she have been sponging?
can't we have been sponging?
can't you have been sponging?
can't they have been sponging?