could streak
Regular verb: streak - streaked- streaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could streak
you could streak
he could streak
we could streak
you could streak
they could streak 	I could be streaking
you could be streaking
he could be streaking
we could be streaking
you could be streaking
they could be streaking	I could have streaked
you could have streaked
he could have streaked
we could have streaked
you could have streaked
they could have streaked	I could have been streaking
you could have been streaking
he could have been streaking
we could have been streaking
you could have been streaking
they could have been streaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't streak
you couldn't streak
he couldn't streak
we couldn't streak
you couldn't streak
they couldn't streak 	I couldn't be streaking
you couldn't be streaking
he couldn't be streaking
we couldn't be streaking
you couldn't be streaking
they couldn't be streaking	I couldn't have streaked
you couldn't have streaked
he couldn't have streaked
we couldn't have streaked
you couldn't have streaked
they couldn't have streaked	I couldn't have been streaking
you couldn't have been streaking
he couldn't have been streaking
we couldn't have been streaking
you couldn't have been streaking
they couldn't have been streaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I streak?
could you streak?
could he streak?
could we streak?
could you streak?
could they streak? 	could I be streaking?
could you be streaking?
could he be streaking?
could we be streaking?
could you be streaking?
could they be streaking? 	could I have streaked?
could you have streaked?
could he have streaked?
could we have streaked?
could you have streaked?
could they have streaked? 	could I have been streaking?
could you have been streaking?
could he have been streaking?
could we have been streaking?
could you have been streaking?
could they have been streaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I streak?
couldn't you streak?
couldn't he streak?
couldn't we streak?
couldn't you streak?
couldn't they streak? 	couldn't I be streaking?
couldn't you be streaking?
couldn't he be streaking?
couldn't we be streaking?
couldn't you be streaking?
couldn't they be streaking? 	couldn't I have streaked?
couldn't you have streaked?
couldn't he have streaked?
couldn't we have streaked?
couldn't you have streaked?
couldn't they have streaked? 	couldn't I have been streaking?
couldn't you have been streaking?
couldn't he have been streaking?
couldn't we have been streaking?
couldn't you have been streaking?
couldn't they have been streaking?