could tumble-dry
Regular verb: tumble-dry - tumble-dried- tumble-dried

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could tumble-dry
you could tumble-dry
he could tumble-dry
we could tumble-dry
you could tumble-dry
they could tumble-dry 	I could be tumble-drying
you could be tumble-drying
he could be tumble-drying
we could be tumble-drying
you could be tumble-drying
they could be tumble-drying	I could have tumble-dried
you could have tumble-dried
he could have tumble-dried
we could have tumble-dried
you could have tumble-dried
they could have tumble-dried	I could have been tumble-drying
you could have been tumble-drying
he could have been tumble-drying
we could have been tumble-drying
you could have been tumble-drying
they could have been tumble-drying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not tumble-dry
you could not tumble-dry
he could not tumble-dry
we could not tumble-dry
you could not tumble-dry
they could not tumble-dry 	I could not be tumble-drying
you could not be tumble-drying
he could not be tumble-drying
we could not be tumble-drying
you could not be tumble-drying
they could not be tumble-drying	I could not have tumble-dried
you could not have tumble-dried
he could not have tumble-dried
we could not have tumble-dried
you could not have tumble-dried
they could not have tumble-dried	I could not have been tumble-drying
you could not have been tumble-drying
he could not have been tumble-drying
we could not have been tumble-drying
you could not have been tumble-drying
they could not have been tumble-drying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I tumble-dry?
could you tumble-dry?
could he tumble-dry?
could we tumble-dry?
could you tumble-dry?
could they tumble-dry? 	could I be tumble-drying?
could you be tumble-drying?
could he be tumble-drying?
could we be tumble-drying?
could you be tumble-drying?
could they be tumble-drying? 	could I have tumble-dried?
could you have tumble-dried?
could he have tumble-dried?
could we have tumble-dried?
could you have tumble-dried?
could they have tumble-dried? 	could I have been tumble-drying?
could you have been tumble-drying?
could he have been tumble-drying?
could we have been tumble-drying?
could you have been tumble-drying?
could they have been tumble-drying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not tumble-dry?
could you not tumble-dry?
could he not tumble-dry?
could we not tumble-dry?
could you not tumble-dry?
could they not tumble-dry? 	could I not be tumble-drying?
could you not be tumble-drying?
could he not be tumble-drying?
could we not be tumble-drying?
could you not be tumble-drying?
could they not be tumble-drying? 	could I not have tumble-dried?
could you not have tumble-dried?
could he not have tumble-dried?
could we not have tumble-dried?
could you not have tumble-dried?
could they not have tumble-dried? 	could I not have been tumble-drying?
could you not have been tumble-drying?
could he not have been tumble-drying?
could we not have been tumble-drying?
could you not have been tumble-drying?
could they not have been tumble-drying?