English verb conjugation
COULD LOOK

Regular verb: look - looked - looked

Affirmation

Simple form	V-ing form
I could look you could look she could look we could look you could look they could look	I could be looking you could be looking she could be looking we could be looking you could be looking they could be looking
Perfect	V-ing perfect
I could have looked you could have looked she could have looked we could have looked you could have looked they could have looked	I could have been looking you could have been looking she could have been looking we could have been looking you could have been looking they could have been looking

Negation

Simple form	V-ing form
I couldn't look you couldn't look she couldn't look we couldn't look you couldn't look they couldn't look	I couldn't be looking you couldn't be looking she couldn't be looking we couldn't be looking you couldn't be looking they couldn't be looking
Perfect	V-ing perfect
I couldn't have looked you couldn't have looked she couldn't have looked we couldn't have looked you couldn't have looked they couldn't have looked	I couldn't have been looking you couldn't have been looking she couldn't have been looking we couldn't have been looking you couldn't have been looking they couldn't have been looking

Interrogative form

Simple form	V-ing form
could I look? could you look? could she look? could we look? could you look? could they look?	could I be looking? could you be looking? could she be looking? could we be looking? could you be looking? could they be looking?
Perfect	V-ing perfect
could I have looked? could you have looked? could she have looked? could we have looked? could you have looked? could they have looked?	could I have been looking? could you have been looking? could she have been looking? could we have been looking? could you have been looking? could they have been looking?

Interro-negative form

Simple form	V-ing form
couldn't I look? couldn't you look? couldn't she look? couldn't we look? couldn't you look? couldn't they look?	couldn't I be looking? couldn't you be looking? couldn't she be looking? couldn't we be looking? couldn't you be looking? couldn't they be looking?
Perfect	V-ing perfect
couldn't I have looked? couldn't you have looked? couldn't she have looked? couldn't we have looked? couldn't you have looked? couldn't they have looked?	couldn't I have been looking? couldn't you have been looking? couldn't she have been looking? couldn't we have been looking? couldn't you have been looking? couldn't they have been looking?