I could blow-dry you could blow-dry she could blow-dry we could blow-dry you could blow-dry they could blow-dry
V-ing form
I could be blow-drying you could be blow-drying she could be blow-drying we could be blow-drying you could be blow-drying they could be blow-drying
Perfect
I could have blow-dried you could have blow-dried she could have blow-dried we could have blow-dried you could have blow-dried they could have blow-dried
V-ing perfect
I could have been blow-drying you could have been blow-drying she could have been blow-drying we could have been blow-drying you could have been blow-drying they could have been blow-drying
Negation
Simple form
I could not blow-dry you could not blow-dry she could not blow-dry we could not blow-dry you could not blow-dry they could not blow-dry
V-ing form
I could not be blow-drying you could not be blow-drying she could not be blow-drying we could not be blow-drying you could not be blow-drying they could not be blow-drying
Perfect
I could not have blow-dried you could not have blow-dried she could not have blow-dried we could not have blow-dried you could not have blow-dried they could not have blow-dried
V-ing perfect
I could not have been blow-drying you could not have been blow-drying she could not have been blow-drying we could not have been blow-drying you could not have been blow-drying they could not have been blow-drying
Interrogative form
Simple form
could I blow-dry? could you blow-dry? could she blow-dry? could we blow-dry? could you blow-dry? could they blow-dry?
V-ing form
could I be blow-drying? could you be blow-drying? could she be blow-drying? could we be blow-drying? could you be blow-drying? could they be blow-drying?
Perfect
could I have blow-dried? could you have blow-dried? could she have blow-dried? could we have blow-dried? could you have blow-dried? could they have blow-dried?
V-ing perfect
could I have been blow-drying? could you have been blow-drying? could she have been blow-drying? could we have been blow-drying? could you have been blow-drying? could they have been blow-drying?
Interro-negative form
Simple form
could I not blow-dry? could you not blow-dry? could she not blow-dry? could we not blow-dry? could you not blow-dry? could they not blow-dry?
V-ing form
could I not be blow-drying? could you not be blow-drying? could she not be blow-drying? could we not be blow-drying? could you not be blow-drying? could they not be blow-drying?
Perfect
could I not have blow-dried? could you not have blow-dried? could she not have blow-dried? could we not have blow-dried? could you not have blow-dried? could they not have blow-dried?
V-ing perfect
could I not have been blow-drying? could you not have been blow-drying? could she not have been blow-drying? could we not have been blow-drying? could you not have been blow-drying? could they not have been blow-drying?