Past Future Tense

Tenses bentuk Past Future terdiri dari 4 macam yaitu:
1. Simple Past Future Tense
2. Past Future Continuous Tense
3. Past Future Perfect Tense
4. Past Future Perfect Continuous Tense

1. Simple Past Future
[+]  S + Should/Would + V1
[-]  S + Should/Would + not + Vi
[?] Should/Would + S + V1 +?

2. Past Future Continuous Tense
[+] S + Should/Would + be + V-ing + O
[-]  S + Should/Would + not + be + V-ing + O
[?] Should/Would + S + be + V-ing + O + ?

3. Past Future Perfect Tense
[+] S + Should/Would + Have + V3 + O
[-]  S + Should/Would + not + Have + V3 + O
[?] Should/Would + S + Have + V3 + O?

4. Past Future Perfect Continuous Tense
[+] S + Should/Would + Have + been + V-ing + O
[-] S + Should/Would + not + Have + been + V-ing + O
[?] Should/Would + S + Have + been + V-ing + O + ?