関連ワード:  structure of simple present continuous tense    structure of simple past perfect continuous tense    structure of simple present perfect continuous tense    sentence structure of simple present continuous tense    basic structure of present continuous tense    simple present continuous tense structure and examples    structure of past perfect continuous tense    structure of past perfect continuous tense with examples    structure of past perfect continuous tense interrogative    structure of past perfect continuous tense in passive voice  
結果 : structure of simple present continuous tense