Broad bean

My sister's father-in-law husband's father,he has his own farm.
He cultivates various types of vegetables at there.
He sometimes sends my family vegetables that he cultivated.
A few days ago, he sent my family a carbon cardboard box filled with broad beans.
There were so many (or: there was so much) That quantity was too many that we might not be able to can't eat them all.
My sons helped me to peel them.

私の義妹の旦那さんのお父さんは畑を持っています。
彼はそこでいろいろな野菜を育てています。
時々、野菜を送って来てくれます。
先日、我が家にたくさんのそらまめを送ってきてくれました。
我が家だけでは食べきれない程の量でした．
息子達が剥くのを手伝ってくれました。