Past Perfect Tense มักจะใช้คำว่า before, after, already, just, yet, until, till, as soon as, when, by the time, by... (เช่น by this month) และอื่นๆโดยอาจจะมีวิธีใช้ต่างกันไป เช่น
Past Perfect Tense is often used the term before, after, just yet, already, till, until, as soon as, when, by the by, ... time, (such as by this month) and there may be other methods such as the use of different.
Past Perfect Tense often used the word before, after, already, just, yet, until, till, as soon as, when, by the time, by ... (as by this month) and there may be other ways. as well as the
Past Perfect Tense often use the word before after already just,,,,,,, yet until till as soon as when by the time,,, (such as by... By this month) and by may use different, such as