When the right of the plaintiff is proved to all the premises claimed, the verdict shall be for the premises generally, as specified in the declaration; but if it be proved to only a part or share of the premises, the verdict shall specify such part particularly as the same is proved, and with the same certainty of description as is required in the declaration. If the verdict be for an undivided share or interest in the premises claimed, it shall specify the same; and if for an undivided share or interest of a part of the premises, it shall specify such share or interest, and describe such part as before required. The verdict shall also specify the estate found in the plaintiff, whether it be in fee or for life, stating for whose life, or whether it be a term of years, and specifying the duration of such term.