English verb conjugation
COULD GLITTER

Regular verb: glitter - glittered - glittered

Affirmation

Simple form	V-ing form
I could glitter you could glitter he could glitter we could glitter you could glitter they could glitter	I could be glittering you could be glittering he could be glittering we could be glittering you could be glittering they could be glittering
Perfect	V-ing perfect
I could have glittered you could have glittered he could have glittered we could have glittered you could have glittered they could have glittered	I could have been glittering you could have been glittering he could have been glittering we could have been glittering you could have been glittering they could have been glittering

Negation

Simple form	V-ing form
I couldn't glitter you couldn't glitter he couldn't glitter we couldn't glitter you couldn't glitter they couldn't glitter	I couldn't be glittering you couldn't be glittering he couldn't be glittering we couldn't be glittering you couldn't be glittering they couldn't be glittering
Perfect	V-ing perfect
I couldn't have glittered you couldn't have glittered he couldn't have glittered we couldn't have glittered you couldn't have glittered they couldn't have glittered	I couldn't have been glittering you couldn't have been glittering he couldn't have been glittering we couldn't have been glittering you couldn't have been glittering they couldn't have been glittering

Interrogative form

Simple form	V-ing form
could I glitter? could you glitter? could he glitter? could we glitter? could you glitter? could they glitter?	could I be glittering? could you be glittering? could he be glittering? could we be glittering? could you be glittering? could they be glittering?
Perfect	V-ing perfect
could I have glittered? could you have glittered? could he have glittered? could we have glittered? could you have glittered? could they have glittered?	could I have been glittering? could you have been glittering? could he have been glittering? could we have been glittering? could you have been glittering? could they have been glittering?

Interro-negative form

Simple form	V-ing form
couldn't I glitter? couldn't you glitter? couldn't he glitter? couldn't we glitter? couldn't you glitter? couldn't they glitter?	couldn't I be glittering? couldn't you be glittering? couldn't he be glittering? couldn't we be glittering? couldn't you be glittering? couldn't they be glittering?
Perfect	V-ing perfect
couldn't I have glittered? couldn't you have glittered? couldn't he have glittered? couldn't we have glittered? couldn't you have glittered? couldn't they have glittered?	couldn't I have been glittering? couldn't you have been glittering? couldn't he have been glittering? couldn't we have been glittering? couldn't you have been glittering? couldn't they have been glittering?