English verb conjugation
COULD GLISTEN

Regular verb: glisten - glistened - glistened

Affirmation

Simple form	V-ing form
I could glisten you could glisten she could glisten we could glisten you could glisten they could glisten	I could be glistening you could be glistening she could be glistening we could be glistening you could be glistening they could be glistening
Perfect	V-ing perfect
I could have glistened you could have glistened she could have glistened we could have glistened you could have glistened they could have glistened	I could have been glistening you could have been glistening she could have been glistening we could have been glistening you could have been glistening they could have been glistening

Negation

Simple form	V-ing form
I couldn't glisten you couldn't glisten she couldn't glisten we couldn't glisten you couldn't glisten they couldn't glisten	I couldn't be glistening you couldn't be glistening she couldn't be glistening we couldn't be glistening you couldn't be glistening they couldn't be glistening
Perfect	V-ing perfect
I couldn't have glistened you couldn't have glistened she couldn't have glistened we couldn't have glistened you couldn't have glistened they couldn't have glistened	I couldn't have been glistening you couldn't have been glistening she couldn't have been glistening we couldn't have been glistening you couldn't have been glistening they couldn't have been glistening

Interrogative form

Simple form	V-ing form
could I glisten? could you glisten? could she glisten? could we glisten? could you glisten? could they glisten?	could I be glistening? could you be glistening? could she be glistening? could we be glistening? could you be glistening? could they be glistening?
Perfect	V-ing perfect
could I have glistened? could you have glistened? could she have glistened? could we have glistened? could you have glistened? could they have glistened?	could I have been glistening? could you have been glistening? could she have been glistening? could we have been glistening? could you have been glistening? could they have been glistening?

Interro-negative form

Simple form	V-ing form
couldn't I glisten? couldn't you glisten? couldn't she glisten? couldn't we glisten? couldn't you glisten? couldn't they glisten?	couldn't I be glistening? couldn't you be glistening? couldn't she be glistening? couldn't we be glistening? couldn't you be glistening? couldn't they be glistening?
Perfect	V-ing perfect
couldn't I have glistened? couldn't you have glistened? couldn't she have glistened? couldn't we have glistened? couldn't you have glistened? couldn't they have glistened?	couldn't I have been glistening? couldn't you have been glistening? couldn't she have been glistening? couldn't we have been glistening? couldn't you have been glistening? couldn't they have been glistening?