Past Perfect Tense in English Past Perfect Tense indicates a past action which is completed before another past action. POSITIVE FORM (+) : Subject + HAD + V3 ( third form of main verb – past participle ) NEGATIVE FORM (-) : Subject + HAD + NOT + V3 ( third form of main verb – past participle ) QUESTION FORM (?) : HAD + Subject + V3 ( third form of main verb – past participle ) NEGATIVE QUESTION FORM (?) : HAD + NOT + Subject + V3 ( third form of main verb – past participle ) SHORT ANSWER FORMS ( + /