L worked at the night, and he returned home at the morning. He wanted to sleep. S was going to work, and said something to L. L said he worked at night and wanted to sleep. S still insist L to drive and to send S to work. Then L complained
Didn't I tell I'd be working nights?
Since "working at night" and "L telling S about this" all happened in the past, why here use "would be doing"?