English verb conjugation
COULD SUNBATHE

Regular verb: sunbathe - sunbathed - sunbathed

Affirmation

Simple form	V-ing form
I could sunbathe you could sunbathe he could sunbathe we could sunbathe you could sunbathe they could sunbathe	I could be sunbathing you could be sunbathing he could be sunbathing we could be sunbathing you could be sunbathing they could be sunbathing
Perfect	V-ing perfect
I could have sunbathed you could have sunbathed he could have sunbathed we could have sunbathed you could have sunbathed they could have sunbathed	I could have been sunbathing you could have been sunbathing he could have been sunbathing we could have been sunbathing you could have been sunbathing they could have been sunbathing

Negation

Simple form	V-ing form
I couldn't sunbathe you couldn't sunbathe he couldn't sunbathe we couldn't sunbathe you couldn't sunbathe they couldn't sunbathe	I couldn't be sunbathing you couldn't be sunbathing he couldn't be sunbathing we couldn't be sunbathing you couldn't be sunbathing they couldn't be sunbathing
Perfect	V-ing perfect
I couldn't have sunbathed you couldn't have sunbathed he couldn't have sunbathed we couldn't have sunbathed you couldn't have sunbathed they couldn't have sunbathed	I couldn't have been sunbathing you couldn't have been sunbathing he couldn't have been sunbathing we couldn't have been sunbathing you couldn't have been sunbathing they couldn't have been sunbathing

Interrogative form

Simple form	V-ing form
could I sunbathe? could you sunbathe? could he sunbathe? could we sunbathe? could you sunbathe? could they sunbathe?	could I be sunbathing? could you be sunbathing? could he be sunbathing? could we be sunbathing? could you be sunbathing? could they be sunbathing?
Perfect	V-ing perfect
could I have sunbathed? could you have sunbathed? could he have sunbathed? could we have sunbathed? could you have sunbathed? could they have sunbathed?	could I have been sunbathing? could you have been sunbathing? could he have been sunbathing? could we have been sunbathing? could you have been sunbathing? could they have been sunbathing?

Interro-negative form

Simple form	V-ing form
couldn't I sunbathe? couldn't you sunbathe? couldn't he sunbathe? couldn't we sunbathe? couldn't you sunbathe? couldn't they sunbathe?	couldn't I be sunbathing? couldn't you be sunbathing? couldn't he be sunbathing? couldn't we be sunbathing? couldn't you be sunbathing? couldn't they be sunbathing?
Perfect	V-ing perfect
couldn't I have sunbathed? couldn't you have sunbathed? couldn't he have sunbathed? couldn't we have sunbathed? couldn't you have sunbathed? couldn't they have sunbathed?	couldn't I have been sunbathing? couldn't you have been sunbathing? couldn't he have been sunbathing? couldn't we have been sunbathing? couldn't you have been sunbathing? couldn't they have been sunbathing?