could speed
Irregular verb: speed - sped- sped

Affirmation 	
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I could speed
you could speed
she could speed
we could speed
you could speed
they could speed 	I could be speeding
you could be speeding
she could be speeding
we could be speeding
you could be speeding
they could be speeding	I could have sped
you could have sped
she could have sped
we could have sped
you could have sped
they could have sped	I could have been speeding
you could have been speeding
she could have been speeding
we could have been speeding
you could have been speeding
they could have been speeding	

Negation 	
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I couldn't speed
you couldn't speed
she couldn't speed
we couldn't speed
you couldn't speed
they couldn't speed 	I couldn't be speeding
you couldn't be speeding
she couldn't be speeding
we couldn't be speeding
you couldn't be speeding
they couldn't be speeding	I couldn't have sped
you couldn't have sped
she couldn't have sped
we couldn't have sped
you couldn't have sped
they couldn't have sped	I couldn't have been speeding
you couldn't have been speeding
she couldn't have been speeding
we couldn't have been speeding
you couldn't have been speeding
they couldn't have been speeding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I speed?
could you speed?
could she speed?
could we speed?
could you speed?
could they speed? 	could I be speeding?
could you be speeding?
could she be speeding?
could we be speeding?
could you be speeding?
could they be speeding? 	could I have sped?
could you have sped?
could she have sped?
could we have sped?
could you have sped?
could they have sped? 	could I have been speeding?
could you have been speeding?
could she have been speeding?
could we have been speeding?
could you have been speeding?
could they have been speeding? 	

Interro-negative form 	
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couldn't I speed?
couldn't you speed?
couldn't she speed?
couldn't we speed?
couldn't you speed?
couldn't they speed? 	couldn't I be speeding?
couldn't you be speeding?
couldn't she be speeding?
couldn't we be speeding?
couldn't you be speeding?
couldn't they be speeding? 	couldn't I have sped?
couldn't you have sped?
couldn't she have sped?
couldn't we have sped?
couldn't you have sped?
couldn't they have sped? 	couldn't I have been speeding?
couldn't you have been speeding?
couldn't she have been speeding?
couldn't we have been speeding?
couldn't you have been speeding?
couldn't they have been speeding?