English verb conjugation
COULD SUNTAN

Regular verb: suntan - suntaned - suntaned

Affirmation

Simple form	V-ing form
I could suntan you could suntan he could suntan we could suntan you could suntan they could suntan	I could be suntaning you could be suntaning he could be suntaning we could be suntaning you could be suntaning they could be suntaning
Perfect	V-ing perfect
I could have suntaned you could have suntaned he could have suntaned we could have suntaned you could have suntaned they could have suntaned	I could have been suntaning you could have been suntaning he could have been suntaning we could have been suntaning you could have been suntaning they could have been suntaning

Negation

Simple form	V-ing form
I couldn't suntan you couldn't suntan he couldn't suntan we couldn't suntan you couldn't suntan they couldn't suntan	I couldn't be suntaning you couldn't be suntaning he couldn't be suntaning we couldn't be suntaning you couldn't be suntaning they couldn't be suntaning
Perfect	V-ing perfect
I couldn't have suntaned you couldn't have suntaned he couldn't have suntaned we couldn't have suntaned you couldn't have suntaned they couldn't have suntaned	I couldn't have been suntaning you couldn't have been suntaning he couldn't have been suntaning we couldn't have been suntaning you couldn't have been suntaning they couldn't have been suntaning

Interrogative form

Simple form	V-ing form
could I suntan? could you suntan? could he suntan? could we suntan? could you suntan? could they suntan?	could I be suntaning? could you be suntaning? could he be suntaning? could we be suntaning? could you be suntaning? could they be suntaning?
Perfect	V-ing perfect
could I have suntaned? could you have suntaned? could he have suntaned? could we have suntaned? could you have suntaned? could they have suntaned?	could I have been suntaning? could you have been suntaning? could he have been suntaning? could we have been suntaning? could you have been suntaning? could they have been suntaning?

Interro-negative form

Simple form	V-ing form
couldn't I suntan? couldn't you suntan? couldn't he suntan? couldn't we suntan? couldn't you suntan? couldn't they suntan?	couldn't I be suntaning? couldn't you be suntaning? couldn't he be suntaning? couldn't we be suntaning? couldn't you be suntaning? couldn't they be suntaning?
Perfect	V-ing perfect
couldn't I have suntaned? couldn't you have suntaned? couldn't he have suntaned? couldn't we have suntaned? couldn't you have suntaned? couldn't they have suntaned?	couldn't I have been suntaning? couldn't you have been suntaning? couldn't he have been suntaning? couldn't we have been suntaning? couldn't you have been suntaning? couldn't they have been suntaning?