Past Perfect and Past Simple

had come, washed

came, had washed

had come, had washed

baked, had gone

baked, went

had baked, went

returned, started

had returned, started

returned, had started

Did...complete

Did...completed

Had...completed

got, had already left

had got, had already left

had got, left

opened, understood, did

opened, understood, had done

had opened, had understood, did

checked in, arrived

checked in, had arrived

had checked in, arrived

didn't do, got

hadn't done, got

did, didn't got

did...visit, had

had...visited, had had

had ... visited, had

had bought, took

bought, had taken

bought, took

shut, tried

had shut, tried

shut, had tried