since past few day, the ac is not working properly vs for past few days, the ac is not working

Some examples from the web:

• Past few days, the horses have been real uneasy.
• More and more, the past few days, I've been having trouble reading.
• In the past few days, the German press has given its interpretation of events.
• Over the past few days, the people who worked at the AZF factory have been burying their colleagues.
• Mr President, over the past few days, the debate on a European economic government has gained momentum once again in different quarters.
• Over the past few days, the Romanian Government has announced new reforms and accelerated the old ones.
• In the past few days, the President of Romania has unfortunately stated once again that he does not support Székely territorial autonomy.
• This virus that's going around, the shootings the past few days, it's connected.
• In Greece in the past few days, after the outcry which arose, the leadership of the Socialist Party changed its mind on private higher education.
• I would add that, according to press reports over the past few days, the French Minister of Economics and Finance intends to embark on a dialogue with all the parties affected by euro-related bank charges.
• For the past few days, I have gone above and beyond.
• I been missing you these past few days, Coffy.
• Nan, whatever happens, the past few days balance for everything.
• We've been through a lot these past few days, you and I.
• All three women were robbed over the past few days, and each incident was more violent than the one before it.
• But... For the past few days, I've had some bewildering dreams.
• In the past few days, wildlife officials have been swamped with hundred of phone calls from Agrestic residents who have reported seeing a large tan mountain lion.
• I noticed that you have been getting thinner for the past few days, So I prepared herb medicine for you.
• These past few days, your moods have changed like that.
• If I learned anything in these past few days, it's that I need to face reality.

Some examples from the web:

• Past few days, the horses have been real uneasy.
• More and more, the past few days, I've been having trouble reading.
• In the past few days, the German press has given its interpretation of events.
• Over the past few days, the people who worked at the AZF factory have been burying their colleagues.
• Mr President, over the past few days, the debate on a European economic government has gained momentum once again in different quarters.
• Over the past few days, the Romanian Government has announced new reforms and accelerated the old ones.
• In the past few days, the President of Romania has unfortunately stated once again that he does not support Székely territorial autonomy.
• This virus that's going around, the shootings the past few days, it's connected.
• In Greece in the past few days, after the outcry which arose, the leadership of the Socialist Party changed its mind on private higher education.
• I would add that, according to press reports over the past few days, the French Minister of Economics and Finance intends to embark on a dialogue with all the parties affected by euro-related bank charges.
• For the past few days, I have gone above and beyond.
• I been missing you these past few days, Coffy.
• Nan, whatever happens, the past few days balance for everything.
• We've been through a lot these past few days, you and I.
• All three women were robbed over the past few days, and each incident was more violent than the one before it.
• But... For the past few days, I've had some bewildering dreams.
• In the past few days, wildlife officials have been swamped with hundred of phone calls from Agrestic residents who have reported seeing a large tan mountain lion.
• I noticed that you have been getting thinner for the past few days, So I prepared herb medicine for you.
• These past few days, your moods have changed like that.
• If I learned anything in these past few days, it's that I need to face reality.