Meaning trap
put down
to place something on a surface
To move something you are holding and place it onto a table, floor, or another surface.

Don't mix these meanings
Same phrase, different job.
To move something you are holding and place it onto a table, floor, or another surface.
Another meaning of 'put down' is 'to criticize or insult someone'; compare the examples to keep the meanings separate.
Hear it in context
Notice where the phrase sounds natural.
She put down her bag on the chair and sat next to me.
When I get home from work, I usually put down my keys on the table by the door so I don't lose them.
Fix the pattern
One small grammar move makes it sound right.
Not: Put down it on the table.
Say: Put it down on the table.
With a pronoun, the object goes in the middle: 'put it down'.
Which sounds natural?
Tap the one a native speaker would say.
'Put down' is the everyday verb; 'place upon' is formal/stiff.
Build natural chunks
Words that usually travel with it.
put + thing + down
- it down
- the bags down
- your pen down
- down carefully
Don't confuse it
Related
Other meanings and phrases to compare.
- put down (to criticize or insult someone) — Another meaning of 'put down' is 'to criticize or insult someone'; compare the examples to keep the meanings separate.