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I always forget where I put my keys.
This means the speaker often can't recall the location of their keys.
To fail to remember something or someone.
She tends to forget appointments if she doesn't write them down.
This shows that she often doesn't remember scheduled events without reminders.
Don't forget to call your mother.
This is a reminder to remember to make a phone call.
Can be used in both the literal and figurative sense.
To intentionally overlook or disregard something.
He chose to forget the argument they had.
This means he decided not to dwell on the conflict.
Often used when someone chooses to ignore past events or feelings.
Avoid using 'forget' with 'of' (e.g., 'forget of' is incorrect; use 'forget about').
'Forget' can be transitive (e.g., 'I forgot my keys') or intransitive (e.g., 'I forget easily').
From Middle English 'forgeten', from Old English 'forgietan', from Proto-Germanic 'fragétan' (to forget), from Proto-Indo-European 'bʰeg-' (to lack, fail).
Can be used in both transitive and intransitive forms. Often followed by 'about' or 'to' in collocations.