PAST PERFECT CONTINUOUS TENSE –mekteydim -maktaydım

POSITIVE(+): I, you, we, they, he, she, it + had been + verb-ing

QUESTION(?): had + I, you, we, they, he, she, it + been + verb-ing?

NEGATIVE(-):I, you, we, they, he, she, it + hadn’t been + verb-ing