彼女はこの前と同じまちがいをした。

she; her; her; girlfriend; sweetheart

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

ago; before (some event); previously; (minutes) to (the hour); in front (of); before (e.g. the house); head (of a line); front (e.g. of a bus); fore part; in the presence of; helping; portion; privates; private parts

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

same; identical; equal; uniform; equivalent; similar; common (origin); changeless; alike; (usu. part of a 'nara' conditional) anyway; anyhow; in either case

mistake; error; blunder; accident; mishap; trouble; improper conduct (e.g. between man and woman); indiscretion

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to