to personally dropped off vs to personally drop off

Some examples from the web:

• Medical examiner dropped off his report.
• Someone dropped off a Herman Miller chair today.
• The caterer dropped off some samples.
• Waitress already dropped off the Russian dressing.
• I just dropped off Manager Tae Yong.
• I just dropped off some reading material for the women.
• Just dropped off Daphne for her big trip to DC.
• Harold kind of dropped off the world.
• The lady that dropped off the up-front was Hispanic.
• I just dropped off a package for him.
• I'm the one who dropped off the money.
• She dropped off all my stuff.
• Robert just dropped off Callie and Jude.
• She dropped off of Instagram last year.
• His career kind of dropped off after that.
• I dropped off the deposit myself.
• It's as though Hannibal Lecter has dropped off the earth.
• Half the interior trim dropped off.
• The one your girlfriend dropped off here this morning.
• Mausoleum dropped off three of the exhumed bodies an hour ago.

Some examples from the web:

• I'll personally drop you off at the Borodins' doorstep, make sure they know we're friends.
• Since her son Marco was nine years old she had to personally drop him at school to make sure he actually went.
• My husband never drops off cupcakes.
• Because I may personally drop dead from disappointment if I don't find out the 700-millionth thing about life on planet Earth that is bugging you.
• He would drop off bags of cash to me from El Lupo. I would just buy and then drop off the supplies, es todo.
• We had a drop-off point to exchange the balloons and money.
• I just came by to drop off your computer case.
• I just came by to drop off my daughter's fee.
• The rule is you have to drop off your gift tomorrow.
• You hired him to drop off some guns for Mir.
• Delta, move closer to drop-off two.
• Now, that school bus drops off Tommy Gannon every afternoon.
• Came by to drop off keys.
• We're just here to drop off some precious cargo.
• Came by to drop off Halloween decorations from the attic.
• Yes, by working drop-off line, or chaperoning a field trip.
• There could be a sudden drop-off.
• You went there to drop off this duffel bag.
• I want to see if your eyebrows drop off.
• She... wanted to drop off your stuff.