Past Simple vs Present Perfect
Past simple (yesterday, last night, in 1945 - ww+ed of tweede rijtje)
Ontkennend - Onderwerop + didn't + hele werkwoord.
Vragend - Did + onderwerp + hele werkwoord?
Present perfect (since, for - have + ww+ed of derde rijtje)
Ontkennend - Onderwerp haven't + voltooid deelwoord
Vragend - Have + onderwerp + voltooid deelwoord