English verb conjugation
COULD TART

Regular verb: tart - tarted - tarted

Affirmation

Simple form	V-ing form
I could tart you could tart she could tart we could tart you could tart they could tart	I could be tarting you could be tarting she could be tarting we could be tarting you could be tarting they could be tarting
Perfect	V-ing perfect
I could have tarted you could have tarted she could have tarted we could have tarted you could have tarted they could have tarted	I could have been tarting you could have been tarting she could have been tarting we could have been tarting you could have been tarting they could have been tarting

Negation

Simple form	V-ing form
I couldn't tart you couldn't tart she couldn't tart we couldn't tart you couldn't tart they couldn't tart	I couldn't be tarting you couldn't be tarting she couldn't be tarting we couldn't be tarting you couldn't be tarting they couldn't be tarting
Perfect	V-ing perfect
I couldn't have tarted you couldn't have tarted she couldn't have tarted we couldn't have tarted you couldn't have tarted they couldn't have tarted	I couldn't have been tarting you couldn't have been tarting she couldn't have been tarting we couldn't have been tarting you couldn't have been tarting they couldn't have been tarting

Interrogative form

Simple form	V-ing form
could I tart? could you tart? could she tart? could we tart? could you tart? could they tart?	could I be tarting? could you be tarting? could she be tarting? could we be tarting? could you be tarting? could they be tarting?
Perfect	V-ing perfect
could I have tarted? could you have tarted? could she have tarted? could we have tarted? could you have tarted? could they have tarted?	could I have been tarting? could you have been tarting? could she have been tarting? could we have been tarting? could you have been tarting? could they have been tarting?

Interro-negative form

Simple form	V-ing form
couldn't I tart? couldn't you tart? couldn't she tart? couldn't we tart? couldn't you tart? couldn't they tart?	couldn't I be tarting? couldn't you be tarting? couldn't she be tarting? couldn't we be tarting? couldn't you be tarting? couldn't they be tarting?
Perfect	V-ing perfect
couldn't I have tarted? couldn't you have tarted? couldn't she have tarted? couldn't we have tarted? couldn't you have tarted? couldn't they have tarted?	couldn't I have been tarting? couldn't you have been tarting? couldn't she have been tarting? couldn't we have been tarting? couldn't you have been tarting? couldn't they have been tarting?