We appreciate you allowing us to share your case as an educational opportunity for our staff.

這個(gè)句子中，關(guān)于allowing us to share your caseas an educational opportunity for our staff，假如把這個(gè)動(dòng)名詞短語(yǔ)理解為一個(gè)句子的話，那樣as短語(yǔ)作方法狀語(yǔ)，根據(jù)語(yǔ)法規(guī)定狀語(yǔ)應(yīng)該飾謂語(yǔ)動(dòng)詞，所以as短語(yǔ)應(yīng)該修飾allowing。但我感覺，好像在邏輯上as短語(yǔ)修飾的是allow的賓補(bǔ)share，這就產(chǎn)生了沖突，所以as短語(yǔ)到底修飾的是哪個(gè)呢？為何會(huì)是修飾賓補(bǔ)呢？

to share your case as an educational opportunity for our staff.

黑體部分是修飾不定式to share的方法狀語(yǔ)。整個(gè)劃線部分為不定式短語(yǔ)，作allowing的賓補(bǔ)。