-Past Perfect-

Anda ingin tahu informasi lebih lanjut??sihlakan klik di sini
Menyatakan aktivitas yang telah terjadi sebelum aktivitas lain terjadi di masa lampau.
"Time Signal"
     Past Perfect + before S. Past
     Past Perfect + when S. Past
     S. Past + after past perfect
     By the end of last month

"Formula"
(+)S + had + verb 3 + 0
(-)S + had + not + verb 3 + 0
(?)Had + S + verb 3 +0?

"Example"
a. (+)My parents had eaten by the time I got home
   (-) My parents had not caten by the time I got home
    (?)Had your  parent paten by the time I got home
b. (+)Until yesterday, I had met my class mate in elementary school
    (-)Until yesterday, I had'n met my class mate in elementary school
    (?)Had you met your class mate in elementary school