English verb conjugation
COULD AIRBRUSH

Regular verb: airbrush - airbrushed - airbrushed

Affirmation

Simple form	V-ing form
I could airbrush you could airbrush he could airbrush we could airbrush you could airbrush they could airbrush	I could be airbrushing you could be airbrushing he could be airbrushing we could be airbrushing you could be airbrushing they could be airbrushing
Perfect	V-ing perfect
I could have airbrushed you could have airbrushed he could have airbrushed we could have airbrushed you could have airbrushed they could have airbrushed	I could have been airbrushing you could have been airbrushing he could have been airbrushing we could have been airbrushing you could have been airbrushing they could have been airbrushing

Negation

Simple form	V-ing form
I couldn't airbrush you couldn't airbrush he couldn't airbrush we couldn't airbrush you couldn't airbrush they couldn't airbrush	I couldn't be airbrushing you couldn't be airbrushing he couldn't be airbrushing we couldn't be airbrushing you couldn't be airbrushing they couldn't be airbrushing
Perfect	V-ing perfect
I couldn't have airbrushed you couldn't have airbrushed he couldn't have airbrushed we couldn't have airbrushed you couldn't have airbrushed they couldn't have airbrushed	I couldn't have been airbrushing you couldn't have been airbrushing he couldn't have been airbrushing we couldn't have been airbrushing you couldn't have been airbrushing they couldn't have been airbrushing

Interrogative form

Simple form	V-ing form
could I airbrush? could you airbrush? could he airbrush? could we airbrush? could you airbrush? could they airbrush?	could I be airbrushing? could you be airbrushing? could he be airbrushing? could we be airbrushing? could you be airbrushing? could they be airbrushing?
Perfect	V-ing perfect
could I have airbrushed? could you have airbrushed? could he have airbrushed? could we have airbrushed? could you have airbrushed? could they have airbrushed?	could I have been airbrushing? could you have been airbrushing? could he have been airbrushing? could we have been airbrushing? could you have been airbrushing? could they have been airbrushing?

Interro-negative form

Simple form	V-ing form
couldn't I airbrush? couldn't you airbrush? couldn't he airbrush? couldn't we airbrush? couldn't you airbrush? couldn't they airbrush?	couldn't I be airbrushing? couldn't you be airbrushing? couldn't he be airbrushing? couldn't we be airbrushing? couldn't you be airbrushing? couldn't they be airbrushing?
Perfect	V-ing perfect
couldn't I have airbrushed? couldn't you have airbrushed? couldn't he have airbrushed? couldn't we have airbrushed? couldn't you have airbrushed? couldn't they have airbrushed?	couldn't I have been airbrushing? couldn't you have been airbrushing? couldn't he have been airbrushing? couldn't we have been airbrushing? couldn't you have been airbrushing? couldn't they have been airbrushing?