一つの例として日本文を表します。
彼は身体を張って自分の財産を守った。
He devoted himself wholeheartedly to protecting his propertis(his properties).
He put his whole body into protecting his properties(his properties).
He laid his life on the line for protecting his properties(his properties).
to, into, forは前置詞なので、portecting his propertiesあるいはhis propetiesとします。