in partnership

See: common
References in classic literature ?
It is true that the peasants of the same company, though they had agreed to work the land on new conditions, always spoke of the land, not as held in partnership, but as rented for half the crop, and more than once the peasants and Ryezunov himself said to Levin, "If you would take a rent for the land, it would save you trouble, and we should be more free.
And the worst of it was that her merry eye was in partnership with a merry tongue.