could slipstream
Regular verb: slipstream - slipstreamed- slipstreamed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could slipstream
you could slipstream
he could slipstream
we could slipstream
you could slipstream
they could slipstream 	I could be slipstreaming
you could be slipstreaming
he could be slipstreaming
we could be slipstreaming
you could be slipstreaming
they could be slipstreaming	I could have slipstreamed
you could have slipstreamed
he could have slipstreamed
we could have slipstreamed
you could have slipstreamed
they could have slipstreamed	I could have been slipstreaming
you could have been slipstreaming
he could have been slipstreaming
we could have been slipstreaming
you could have been slipstreaming
they could have been slipstreaming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't slipstream
you couldn't slipstream
he couldn't slipstream
we couldn't slipstream
you couldn't slipstream
they couldn't slipstream 	I couldn't be slipstreaming
you couldn't be slipstreaming
he couldn't be slipstreaming
we couldn't be slipstreaming
you couldn't be slipstreaming
they couldn't be slipstreaming	I couldn't have slipstreamed
you couldn't have slipstreamed
he couldn't have slipstreamed
we couldn't have slipstreamed
you couldn't have slipstreamed
they couldn't have slipstreamed	I couldn't have been slipstreaming
you couldn't have been slipstreaming
he couldn't have been slipstreaming
we couldn't have been slipstreaming
you couldn't have been slipstreaming
they couldn't have been slipstreaming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I slipstream?
could you slipstream?
could he slipstream?
could we slipstream?
could you slipstream?
could they slipstream? 	could I be slipstreaming?
could you be slipstreaming?
could he be slipstreaming?
could we be slipstreaming?
could you be slipstreaming?
could they be slipstreaming? 	could I have slipstreamed?
could you have slipstreamed?
could he have slipstreamed?
could we have slipstreamed?
could you have slipstreamed?
could they have slipstreamed? 	could I have been slipstreaming?
could you have been slipstreaming?
could he have been slipstreaming?
could we have been slipstreaming?
could you have been slipstreaming?
could they have been slipstreaming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I slipstream?
couldn't you slipstream?
couldn't he slipstream?
couldn't we slipstream?
couldn't you slipstream?
couldn't they slipstream? 	couldn't I be slipstreaming?
couldn't you be slipstreaming?
couldn't he be slipstreaming?
couldn't we be slipstreaming?
couldn't you be slipstreaming?
couldn't they be slipstreaming? 	couldn't I have slipstreamed?
couldn't you have slipstreamed?
couldn't he have slipstreamed?
couldn't we have slipstreamed?
couldn't you have slipstreamed?
couldn't they have slipstreamed? 	couldn't I have been slipstreaming?
couldn't you have been slipstreaming?
couldn't he have been slipstreaming?
couldn't we have been slipstreaming?
couldn't you have been slipstreaming?
couldn't they have been slipstreaming?