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 couldn't blow-dry you couldn't blow-dry she couldn't blow-dry we couldn't blow-dry you couldn't blow-dry they couldn't blow-dry
V-ing form
I couldn't be blow-drying you couldn't be blow-drying she couldn't be blow-drying we couldn't be blow-drying you couldn't be blow-drying they couldn't be blow-drying
Perfect
I couldn't have blow-dried you couldn't have blow-dried she couldn't have blow-dried we couldn't have blow-dried you couldn't have blow-dried they couldn't have blow-dried
V-ing perfect
I couldn't have been blow-drying you couldn't have been blow-drying she couldn't have been blow-drying we couldn't have been blow-drying you couldn't have been blow-drying they couldn't 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
couldn't I blow-dry? couldn't you blow-dry? couldn't she blow-dry? couldn't we blow-dry? couldn't you blow-dry? couldn't they blow-dry?
V-ing form
couldn't I be blow-drying? couldn't you be blow-drying? couldn't she be blow-drying? couldn't we be blow-drying? couldn't you be blow-drying? couldn't they be blow-drying?
Perfect
couldn't I have blow-dried? couldn't you have blow-dried? couldn't she have blow-dried? couldn't we have blow-dried? couldn't you have blow-dried? couldn't they have blow-dried?
V-ing perfect
couldn't I have been blow-drying? couldn't you have been blow-drying? couldn't she have been blow-drying? couldn't we have been blow-drying? couldn't you have been blow-drying? couldn't they have been blow-drying?