English verb conjugation
COULD WEEKEND

Regular verb: weekend - weekended - weekended

Affirmation

Simple form	V-ing form
I could weekend you could weekend he could weekend we could weekend you could weekend they could weekend	I could be weekending you could be weekending he could be weekending we could be weekending you could be weekending they could be weekending
Perfect	V-ing perfect
I could have weekended you could have weekended he could have weekended we could have weekended you could have weekended they could have weekended	I could have been weekending you could have been weekending he could have been weekending we could have been weekending you could have been weekending they could have been weekending

Negation

Simple form	V-ing form
I couldn't weekend you couldn't weekend he couldn't weekend we couldn't weekend you couldn't weekend they couldn't weekend	I couldn't be weekending you couldn't be weekending he couldn't be weekending we couldn't be weekending you couldn't be weekending they couldn't be weekending
Perfect	V-ing perfect
I couldn't have weekended you couldn't have weekended he couldn't have weekended we couldn't have weekended you couldn't have weekended they couldn't have weekended	I couldn't have been weekending you couldn't have been weekending he couldn't have been weekending we couldn't have been weekending you couldn't have been weekending they couldn't have been weekending

Interrogative form

Simple form	V-ing form
could I weekend? could you weekend? could he weekend? could we weekend? could you weekend? could they weekend?	could I be weekending? could you be weekending? could he be weekending? could we be weekending? could you be weekending? could they be weekending?
Perfect	V-ing perfect
could I have weekended? could you have weekended? could he have weekended? could we have weekended? could you have weekended? could they have weekended?	could I have been weekending? could you have been weekending? could he have been weekending? could we have been weekending? could you have been weekending? could they have been weekending?

Interro-negative form

Simple form	V-ing form
couldn't I weekend? couldn't you weekend? couldn't he weekend? couldn't we weekend? couldn't you weekend? couldn't they weekend?	couldn't I be weekending? couldn't you be weekending? couldn't he be weekending? couldn't we be weekending? couldn't you be weekending? couldn't they be weekending?
Perfect	V-ing perfect
couldn't I have weekended? couldn't you have weekended? couldn't he have weekended? couldn't we have weekended? couldn't you have weekended? couldn't they have weekended?	couldn't I have been weekending? couldn't you have been weekending? couldn't he have been weekending? couldn't we have been weekending? couldn't you have been weekending? couldn't they have been weekending?