English verb conjugation
COULD LIP-READ

Regular verb: lip-read - lip-readed - lip-readed

Affirmation

Simple form	V-ing form
I could lip-read you could lip-read he could lip-read we could lip-read you could lip-read they could lip-read	I could be lip-reading you could be lip-reading he could be lip-reading we could be lip-reading you could be lip-reading they could be lip-reading
Perfect	V-ing perfect
I could have lip-readed you could have lip-readed he could have lip-readed we could have lip-readed you could have lip-readed they could have lip-readed	I could have been lip-reading you could have been lip-reading he could have been lip-reading we could have been lip-reading you could have been lip-reading they could have been lip-reading

Negation

Simple form	V-ing form
I couldn't lip-read you couldn't lip-read he couldn't lip-read we couldn't lip-read you couldn't lip-read they couldn't lip-read	I couldn't be lip-reading you couldn't be lip-reading he couldn't be lip-reading we couldn't be lip-reading you couldn't be lip-reading they couldn't be lip-reading
Perfect	V-ing perfect
I couldn't have lip-readed you couldn't have lip-readed he couldn't have lip-readed we couldn't have lip-readed you couldn't have lip-readed they couldn't have lip-readed	I couldn't have been lip-reading you couldn't have been lip-reading he couldn't have been lip-reading we couldn't have been lip-reading you couldn't have been lip-reading they couldn't have been lip-reading

Interrogative form

Simple form	V-ing form
could I lip-read? could you lip-read? could he lip-read? could we lip-read? could you lip-read? could they lip-read?	could I be lip-reading? could you be lip-reading? could he be lip-reading? could we be lip-reading? could you be lip-reading? could they be lip-reading?
Perfect	V-ing perfect
could I have lip-readed? could you have lip-readed? could he have lip-readed? could we have lip-readed? could you have lip-readed? could they have lip-readed?	could I have been lip-reading? could you have been lip-reading? could he have been lip-reading? could we have been lip-reading? could you have been lip-reading? could they have been lip-reading?

Interro-negative form

Simple form	V-ing form
couldn't I lip-read? couldn't you lip-read? couldn't he lip-read? couldn't we lip-read? couldn't you lip-read? couldn't they lip-read?	couldn't I be lip-reading? couldn't you be lip-reading? couldn't he be lip-reading? couldn't we be lip-reading? couldn't you be lip-reading? couldn't they be lip-reading?
Perfect	V-ing perfect
couldn't I have lip-readed? couldn't you have lip-readed? couldn't he have lip-readed? couldn't we have lip-readed? couldn't you have lip-readed? couldn't they have lip-readed?	couldn't I have been lip-reading? couldn't you have been lip-reading? couldn't he have been lip-reading? couldn't we have been lip-reading? couldn't you have been lip-reading? couldn't they have been lip-reading?