simple past future

Simple  Past  Future (Yang Akan Datang Di Masa Lampau)

1)   Past Future Tense
    She would write some letters when you came (active)
    Dia akan menulis beberapa surat ketika kamu datang
    (S + should,would + Verb1 + O/C)

    Some letters would be written by her when you came (passive)
    Beberapa surat akan ditulis oleh dia ketika kamu datang
    (S + should,would + be + Verb3 + O)

2)   Past Future Continuous Tense
    She would be writing some letters on Monday last week (active)
    Dia akan sedang menulis beberapa surat pada hari Senin minggu lalu
    (S + should,would + be +(Verb1+ing) + O/C)

    Some letters would be being written by her on Monday last week (passive)
    Beberapa surat akan sedang ditulis oleh dia pada hari Senin minggu lalu
    (S + shoul,would + be + being + Verb3 + O)

3)   Past Future Perfect Tense
    She would have written some letters if  you hadn’t come here (active)
    Dia akan telah menulis beberapa surat  jika kamu belum datang kesini
    (S + should,would + have + Verb3 + O/C)

    Some letters would have been written by her if  you hadn’t come here (passive)
    Beberapa surat akan telah sedang ditulis oleh dia jika kamu belum datang kesini
    (S + should,would + have + been + Verb3 + O)

4)   Past Future Perfect Continuous Tense
    She would have been writing some letters by March this year (active)
    Dia akan telah sedang menulis beberapa surat menjelang Maret tahun ini
    (S + should,would + have + been + (Verb1+ing) + O/C)

    Some letters would have been being written by her by March this year (passive)
    Beberapa surat akan telah sedang ditulis oleh dia menjelang Maret tahun ini
    (S + should,would + have + been + being + Verb3 + O)