English verb conjugation
COULD GLISSADE

Regular verb: glissade - glissaded - glissaded

Affirmation

Simple form	V-ing form
I could glissade you could glissade he could glissade we could glissade you could glissade they could glissade	I could be glissading you could be glissading he could be glissading we could be glissading you could be glissading they could be glissading
Perfect	V-ing perfect
I could have glissaded you could have glissaded he could have glissaded we could have glissaded you could have glissaded they could have glissaded	I could have been glissading you could have been glissading he could have been glissading we could have been glissading you could have been glissading they could have been glissading

Negation

Simple form	V-ing form
I couldn't glissade you couldn't glissade he couldn't glissade we couldn't glissade you couldn't glissade they couldn't glissade	I couldn't be glissading you couldn't be glissading he couldn't be glissading we couldn't be glissading you couldn't be glissading they couldn't be glissading
Perfect	V-ing perfect
I couldn't have glissaded you couldn't have glissaded he couldn't have glissaded we couldn't have glissaded you couldn't have glissaded they couldn't have glissaded	I couldn't have been glissading you couldn't have been glissading he couldn't have been glissading we couldn't have been glissading you couldn't have been glissading they couldn't have been glissading

Interrogative form

Simple form	V-ing form
could I glissade? could you glissade? could he glissade? could we glissade? could you glissade? could they glissade?	could I be glissading? could you be glissading? could he be glissading? could we be glissading? could you be glissading? could they be glissading?
Perfect	V-ing perfect
could I have glissaded? could you have glissaded? could he have glissaded? could we have glissaded? could you have glissaded? could they have glissaded?	could I have been glissading? could you have been glissading? could he have been glissading? could we have been glissading? could you have been glissading? could they have been glissading?

Interro-negative form

Simple form	V-ing form
couldn't I glissade? couldn't you glissade? couldn't he glissade? couldn't we glissade? couldn't you glissade? couldn't they glissade?	couldn't I be glissading? couldn't you be glissading? couldn't he be glissading? couldn't we be glissading? couldn't you be glissading? couldn't they be glissading?
Perfect	V-ing perfect
couldn't I have glissaded? couldn't you have glissaded? couldn't he have glissaded? couldn't we have glissaded? couldn't you have glissaded? couldn't they have glissaded?	couldn't I have been glissading? couldn't you have been glissading? couldn't he have been glissading? couldn't we have been glissading? couldn't you have been glissading? couldn't they have been glissading?