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I have done (present perfect) and I did (past simple)
With a finished time (yesterday / last week etc.), we use the past (arrived/saw/was etc.) past simple + finished time
	yesterday.
	last week.
We arrived	at 3 o'clock.
	in 1991.
	six months ago.
	finished time yesterday .. last week six months ago	
		
		
past
NOW
Do not use the present perfect (have arrived / have done / have been etc) with a finished time:
• I saw Paula yesterday, (not 'I have seen')
• Where were you on Sunday afternoon? (not 'Where have you been')
• We didn't have a holiday last year, (not 'We haven't had')
• 'What did you do last night-'   'I stayed at home.'
• William Shakespeare lived from 1564 to 1616. He was a writer. He wrote many plays and poems.
Use the past simple to ask When ... ? or What time
• When did they arrive? (not 'When have they arrived?')
Compare:
present perfect
• I have lost my key. (= I can't find it now)
• Bill has gone home. (= he isn't here now)
• Have you seen Ann? (= where is she now?)
time until now
past
NOW
• Have you ever been to Spain? (= in your life, until now)
• My friend is a writer. He has written many books.
• The letter hasn't arrived yet.
• We've lived in Singapore for six years. (= we live there now)
past simple
• I lost my key last week.
• Bill went home ten minutes ago.
• Did you see Ann on Saturday?
finished time
past N0W
• Did you go to Spain last year?
• Shakespeare wrote many plays and poems.
• The letter didn't arrive yesterday.
• We lived in Glasgow for six years but now we live in Singapore.