sumarais

form-of imperfect plural second-person subjunctive

sumarの二人称複数の接続法過去形

English Meaning

second-person plural imperfect subjunctive of sumar

Si vosotros sumarais todas las cifras, podríais calcular el total exacto.

もしあなたたちがすべての数字を足したならば、正確な合計を計算できたでしょう.

If you added all the numbers, you could calculate the exact total.