関連ワード:  past perfect continuous tense rules interrogative negative    past perfect continuous tense rules affirmative negative interrogative    past perfect continuous tense interrogative negative sentences rule    past perfect continuous tense interrogative rule    past perfect continuous tense interrogative negative sentences    past perfect continuous tense examples positive negative interrogative    past perfect continuous tense negative sentences    past perfect continuous tense interrogative negative sentences examples  
結果 : past perfect continuous tense rules interrogative negative