Non dimenticarti di scrivermi appena arrivi.

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Breakdown of Non dimenticarti di scrivermi appena arrivi.

• non: not
• mi: me
• arrivare: to arrive

Questions & Answers about Non dimenticarti di scrivermi appena arrivi.

What’s the difference between dimenticare and dimenticarsi, and why does the sentence use dimenticarti?

Dimenticare is a transitive verb (“to forget something”): you can say Ho dimenticato le chiavi (“I forgot the keys”).
Dimenticarsi is a pronominal (reflexive) or intransitive form used when you “forget to do something.” It always takes di + infinitive afterward. In the 2nd person singular informal negative command, Italian uses non + infinitive, so:

• Non dimenticare (di…)
• Non dimenticarti (di…)
  The -ti is the reflexive pronoun “yourself,” attached to the infinitive dimenticare because it’s a negative imperative.

Why is there a di before scrivermi? Could I say dimenticarti scrivermi?

Verbs like dimenticarsi, accorgersi, ricordarsi require di when introducing another verb in the infinitive. The pattern is:

• dimenticarsi di
  • infinitive
    So you must say Non dimenticarti di scrivermi, not dimenticarti scrivermi, otherwise it’s ungrammatical.

Why is the pronoun mi attached to scrivere (as scrivermi) instead of placed before the verb?