could preshape
Regular verb: preshape - preshaped- preshaped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could preshape
you could preshape
he could preshape
we could preshape
you could preshape
they could preshape 	I could be preshaping
you could be preshaping
he could be preshaping
we could be preshaping
you could be preshaping
they could be preshaping	I could have preshaped
you could have preshaped
he could have preshaped
we could have preshaped
you could have preshaped
they could have preshaped	I could have been preshaping
you could have been preshaping
he could have been preshaping
we could have been preshaping
you could have been preshaping
they could have been preshaping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't preshape
you couldn't preshape
he couldn't preshape
we couldn't preshape
you couldn't preshape
they couldn't preshape 	I couldn't be preshaping
you couldn't be preshaping
he couldn't be preshaping
we couldn't be preshaping
you couldn't be preshaping
they couldn't be preshaping	I couldn't have preshaped
you couldn't have preshaped
he couldn't have preshaped
we couldn't have preshaped
you couldn't have preshaped
they couldn't have preshaped	I couldn't have been preshaping
you couldn't have been preshaping
he couldn't have been preshaping
we couldn't have been preshaping
you couldn't have been preshaping
they couldn't have been preshaping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I preshape?
could you preshape?
could he preshape?
could we preshape?
could you preshape?
could they preshape? 	could I be preshaping?
could you be preshaping?
could he be preshaping?
could we be preshaping?
could you be preshaping?
could they be preshaping? 	could I have preshaped?
could you have preshaped?
could he have preshaped?
could we have preshaped?
could you have preshaped?
could they have preshaped? 	could I have been preshaping?
could you have been preshaping?
could he have been preshaping?
could we have been preshaping?
could you have been preshaping?
could they have been preshaping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I preshape?
couldn't you preshape?
couldn't he preshape?
couldn't we preshape?
couldn't you preshape?
couldn't they preshape? 	couldn't I be preshaping?
couldn't you be preshaping?
couldn't he be preshaping?
couldn't we be preshaping?
couldn't you be preshaping?
couldn't they be preshaping? 	couldn't I have preshaped?
couldn't you have preshaped?
couldn't he have preshaped?
couldn't we have preshaped?
couldn't you have preshaped?
couldn't they have preshaped? 	couldn't I have been preshaping?
couldn't you have been preshaping?
couldn't he have been preshaping?
couldn't we have been preshaping?
couldn't you have been preshaping?
couldn't they have been preshaping?