Question

what is plueperfect tense

Answer 1

The pluperfect is a type of verb form, generally treated as one of the tenses in certain languages, used to refer to an action at a time earlier than a time in the past already referred to. ... The word derives from the Latin plus quam perfectum, "more than perfect".

Answer 2

HEY DEAR HERE IS YOUR ANSWER............
We use the Pluperfect Subjunctive to express doubt, subjectivity, uncertainty, possibility about situations that happened before another one in the past.

The Pluperfect Subjunctive is used for the same reasons we use the Past Perfect Indicative: to indicate an action that happened before another one in the past. We use it to emphasize that one action occurred before another one that we are referring to. But we need to use it in situations where the subjunctive is necessary. The subjunctive is used because we want to express doubt, subjectivity, uncertainty or possibility, rather than a definite fact.

In order to form the pluperfect subjunctive we need to conjugate the auxiliary verb HABER in the imperfect subjunctive form and then follow this verb with the past participle of the verb.

I HOPE THIS WILL HELP YOU OUT.....

HAVE A GOOD DAY DEAR.............