what is the differnce between spanish past perfect and past perfect continuous?

Question

what is the difference between pluperfect and pluscuamperfecto?

for example- 1. While writing ' I had spoken' which tense should we use? 2. While writing ' I had been speaking' which tense should we use?

Answer 1

It's the same as in English:

I had spoken = había hablado

I had been speaking = había estado hablando