rumus past perfect tense

verbal :+ s + had + v3 + o
            - s + had + not + v3 + o
            ? had + s + v3 + o
Nominal: + s + had + been + ANA
               - s + had + not + been + ANA
               ? had + s + been + ANA

• Positif (+)
Subject + had + verb III + (past participle) + object
• Negatif (-)
Subject + had + not + verb III + object
• Interogative (?)
Had + subject + verb III + object +  ?