関連ワード:  write the structure of present tense    write the structure of present tense with example    write the structure of present tense past tense future tense    write the structure of present tense and past tense    write the structure of simple present tense    write the structure of present continuous tense    write the structure of present perfect tense    write the structure of present indefinite tense    write all the structure of present tense    write the structure of present perfect tense with example