I could speed-read you could speed-read he could speed-read we could speed-read you could speed-read they could speed-read
V-ing form
I could be speed-reading you could be speed-reading he could be speed-reading we could be speed-reading you could be speed-reading they could be speed-reading
Perfect
I could have speed-read you could have speed-read he could have speed-read we could have speed-read you could have speed-read they could have speed-read
V-ing perfect
I could have been speed-reading you could have been speed-reading he could have been speed-reading we could have been speed-reading you could have been speed-reading they could have been speed-reading
Negation
Simple form
I couldn't speed-read you couldn't speed-read he couldn't speed-read we couldn't speed-read you couldn't speed-read they couldn't speed-read
V-ing form
I couldn't be speed-reading you couldn't be speed-reading he couldn't be speed-reading we couldn't be speed-reading you couldn't be speed-reading they couldn't be speed-reading
Perfect
I couldn't have speed-read you couldn't have speed-read he couldn't have speed-read we couldn't have speed-read you couldn't have speed-read they couldn't have speed-read
V-ing perfect
I couldn't have been speed-reading you couldn't have been speed-reading he couldn't have been speed-reading we couldn't have been speed-reading you couldn't have been speed-reading they couldn't have been speed-reading
Interrogative form
Simple form
could I speed-read? could you speed-read? could he speed-read? could we speed-read? could you speed-read? could they speed-read?
V-ing form
could I be speed-reading? could you be speed-reading? could he be speed-reading? could we be speed-reading? could you be speed-reading? could they be speed-reading?
Perfect
could I have speed-read? could you have speed-read? could he have speed-read? could we have speed-read? could you have speed-read? could they have speed-read?
V-ing perfect
could I have been speed-reading? could you have been speed-reading? could he have been speed-reading? could we have been speed-reading? could you have been speed-reading? could they have been speed-reading?
Interro-negative form
Simple form
couldn't I speed-read? couldn't you speed-read? couldn't he speed-read? couldn't we speed-read? couldn't you speed-read? couldn't they speed-read?
V-ing form
couldn't I be speed-reading? couldn't you be speed-reading? couldn't he be speed-reading? couldn't we be speed-reading? couldn't you be speed-reading? couldn't they be speed-reading?
Perfect
couldn't I have speed-read? couldn't you have speed-read? couldn't he have speed-read? couldn't we have speed-read? couldn't you have speed-read? couldn't they have speed-read?
V-ing perfect
couldn't I have been speed-reading? couldn't you have been speed-reading? couldn't he have been speed-reading? couldn't we have been speed-reading? couldn't you have been speed-reading? couldn't they have been speed-reading?