関連ワード:  is it proper to start a sentence with although    is it okay to start a sentence with although    is it ok to start a sentence with although    is it good to start a sentence with although    is it proper to start a sentence with but    is it proper to start a sentence with however    is it proper to start a sentence with yet    is it grammatically correct to start a sentence with although    is it ok to start a sentence with however    is it correct to start a sentence with but  
結果 : is it proper to start a sentence with although