Past Future Pefect Tense

Past Future Pefect Tense digunakan untuk mengungkapkan tindakan yang akan sudah selesai di masa lalu (silahkan bandingkan perbedaannya dengan Future Perfect Tense)

Rumus
Positif (+)
Subject + should/would + have + been + complement
Subject + should/would + have + verb III + object
Negatif (-)
Subject + should/would + not + have + been + complement
Subject + should/would + not + have + verb III + object
Tanya (?)
Should/would + subject + have + been + complement ?
Should/would + subject + have + verb III + object ?

Contoh – Past Future Perfect tense :
My mother should have been here at nine o’clock tomorrow (+)
- Ibu saya akan sudah berada disini jam 9 besok
My mother should not have been here at nine o’clock tomorrow (-)
- Ibu saya tidak akan sudah berada disini jam 9 besok
Should your mother have been here at nine o’clock tomorrow ? (?)
- Apakah ibu kamu akan sudah berada disini jam 9 besok ?

Mar’i would have worked in leading companies next month (+)
- Mar’I akan sudah bekerja di perusahaan ternama bulan depan
Mar’i will not have worked in leading companies next month (-)
- Mar’I tidak akan sudah bekerja di perusahaan ternama bulan depan
Will Mar’i have worked in leading companies next month ? (?)
- Apakah Mar’I akan sudah bekerja di perusahaan ternama bulan depan ?