I could indent you could indent he could indent we could indent you could indent they could indent
V-ing form
I could be indenting you could be indenting he could be indenting we could be indenting you could be indenting they could be indenting
Perfect
I could have indented you could have indented he could have indented we could have indented you could have indented they could have indented
V-ing perfect
I could have been indenting you could have been indenting he could have been indenting we could have been indenting you could have been indenting they could have been indenting
Negation
Simple form
I could not indent you could not indent he could not indent we could not indent you could not indent they could not indent
V-ing form
I could not be indenting you could not be indenting he could not be indenting we could not be indenting you could not be indenting they could not be indenting
Perfect
I could not have indented you could not have indented he could not have indented we could not have indented you could not have indented they could not have indented
V-ing perfect
I could not have been indenting you could not have been indenting he could not have been indenting we could not have been indenting you could not have been indenting they could not have been indenting
Interrogative form
Simple form
could I indent? could you indent? could he indent? could we indent? could you indent? could they indent?
V-ing form
could I be indenting? could you be indenting? could he be indenting? could we be indenting? could you be indenting? could they be indenting?
Perfect
could I have indented? could you have indented? could he have indented? could we have indented? could you have indented? could they have indented?
V-ing perfect
could I have been indenting? could you have been indenting? could he have been indenting? could we have been indenting? could you have been indenting? could they have been indenting?
Interro-negative form
Simple form
could I not indent? could you not indent? could he not indent? could we not indent? could you not indent? could they not indent?
V-ing form
could I not be indenting? could you not be indenting? could he not be indenting? could we not be indenting? could you not be indenting? could they not be indenting?
Perfect
could I not have indented? could you not have indented? could he not have indented? could we not have indented? could you not have indented? could they not have indented?
V-ing perfect
could I not have been indenting? could you not have been indenting? could he not have been indenting? could we not have been indenting? could you not have been indenting? could they not have been indenting?