Past Simple - Pres. Perfect & Past Perfect

PAST PAST SIMPLE SIMPLE PRESENT PRESENT PERFECT PERFECT (Simple (Simple // Continuous) Continuous) PAST PAST PERFECT PERFECT (Simple (Simple // Continuous) Continuous)

PAST PAST SIMPLE SIMPLE PRESENT PRESENT PERFECT PERFECT (Simple (Simple // Continuous) Continuous) PAST PAST PERFECT PERFECT (Simple (Simple // Continuous) Continuous) Less