I could copyread you could copyread she could copyread we could copyread you could copyread they could copyread
V-ing form
I could be copyreading you could be copyreading she could be copyreading we could be copyreading you could be copyreading they could be copyreading
Perfect
I could have copyread you could have copyread she could have copyread we could have copyread you could have copyread they could have copyread
V-ing perfect
I could have been copyreading you could have been copyreading she could have been copyreading we could have been copyreading you could have been copyreading they could have been copyreading
Negation
Simple form
I couldn't copyread you couldn't copyread she couldn't copyread we couldn't copyread you couldn't copyread they couldn't copyread
V-ing form
I couldn't be copyreading you couldn't be copyreading she couldn't be copyreading we couldn't be copyreading you couldn't be copyreading they couldn't be copyreading
Perfect
I couldn't have copyread you couldn't have copyread she couldn't have copyread we couldn't have copyread you couldn't have copyread they couldn't have copyread
V-ing perfect
I couldn't have been copyreading you couldn't have been copyreading she couldn't have been copyreading we couldn't have been copyreading you couldn't have been copyreading they couldn't have been copyreading
Interrogative form
Simple form
could I copyread? could you copyread? could she copyread? could we copyread? could you copyread? could they copyread?
V-ing form
could I be copyreading? could you be copyreading? could she be copyreading? could we be copyreading? could you be copyreading? could they be copyreading?
Perfect
could I have copyread? could you have copyread? could she have copyread? could we have copyread? could you have copyread? could they have copyread?
V-ing perfect
could I have been copyreading? could you have been copyreading? could she have been copyreading? could we have been copyreading? could you have been copyreading? could they have been copyreading?
Interro-negative form
Simple form
couldn't I copyread? couldn't you copyread? couldn't she copyread? couldn't we copyread? couldn't you copyread? couldn't they copyread?
V-ing form
couldn't I be copyreading? couldn't you be copyreading? couldn't she be copyreading? couldn't we be copyreading? couldn't you be copyreading? couldn't they be copyreading?
Perfect
couldn't I have copyread? couldn't you have copyread? couldn't she have copyread? couldn't we have copyread? couldn't you have copyread? couldn't they have copyread?
V-ing perfect
couldn't I have been copyreading? couldn't you have been copyreading? couldn't she have been copyreading? couldn't we have been copyreading? couldn't you have been copyreading? couldn't they have been copyreading?