could slang
Regular verb: slang - slanged- slanged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could slang
you could slang
she could slang
we could slang
you could slang
they could slang 	I could be slanging
you could be slanging
she could be slanging
we could be slanging
you could be slanging
they could be slanging	I could have slanged
you could have slanged
she could have slanged
we could have slanged
you could have slanged
they could have slanged	I could have been slanging
you could have been slanging
she could have been slanging
we could have been slanging
you could have been slanging
they could have been slanging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't slang
you couldn't slang
she couldn't slang
we couldn't slang
you couldn't slang
they couldn't slang 	I couldn't be slanging
you couldn't be slanging
she couldn't be slanging
we couldn't be slanging
you couldn't be slanging
they couldn't be slanging	I couldn't have slanged
you couldn't have slanged
she couldn't have slanged
we couldn't have slanged
you couldn't have slanged
they couldn't have slanged	I couldn't have been slanging
you couldn't have been slanging
she couldn't have been slanging
we couldn't have been slanging
you couldn't have been slanging
they couldn't have been slanging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I slang?
could you slang?
could she slang?
could we slang?
could you slang?
could they slang? 	could I be slanging?
could you be slanging?
could she be slanging?
could we be slanging?
could you be slanging?
could they be slanging? 	could I have slanged?
could you have slanged?
could she have slanged?
could we have slanged?
could you have slanged?
could they have slanged? 	could I have been slanging?
could you have been slanging?
could she have been slanging?
could we have been slanging?
could you have been slanging?
could they have been slanging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I slang?
couldn't you slang?
couldn't she slang?
couldn't we slang?
couldn't you slang?
couldn't they slang? 	couldn't I be slanging?
couldn't you be slanging?
couldn't she be slanging?
couldn't we be slanging?
couldn't you be slanging?
couldn't they be slanging? 	couldn't I have slanged?
couldn't you have slanged?
couldn't she have slanged?
couldn't we have slanged?
couldn't you have slanged?
couldn't they have slanged? 	couldn't I have been slanging?
couldn't you have been slanging?
couldn't she have been slanging?
couldn't we have been slanging?
couldn't you have been slanging?
couldn't they have been slanging?