How to Say "i forget" in Spanish
The Spanish word for “i forget” is “olvide” — A2 level. This is a very common word in everyday Spanish.

Examples
Espero que no olvide la llave.
I hope that he/she doesn't forget the key.
No olvide firmar el documento, por favor.
Please, don't forget to sign the document. (Formal command to 'usted')
Si yo olvide el código, ¿qué hago?
If I forget the code, what do I do? (Using 'olvide' as the 'yo' subjunctive form, often after 'si' for future uncertainty)
The 'Special Wish' Form
'Olvide' is a special verb form (the present subjunctive) used when you express wishes, emotions, doubts, or suggestions about actions that aren't certain yet. You often see it after phrases like 'Espero que...' (I hope that...).
Formal Negative Command
When you want to give a polite, formal command telling someone ('usted') NOT to forget, you use 'No olvide.' The negative command always uses this special verb form.
Mixing Command Forms
Mistake: “No olvida la contraseña. (Using the indicative 'olvida' for a formal command)”
Correction: No olvide la contraseña. (The formal negative command must use the 'olvide' form.)
Forgetting the 'Que'
Mistake: “Quiero olvide mi cumpleaños.”
Correction: Quiero que olvide mi cumpleaños. (If the subject changes—'I want that he/she forgets'—you must use 'que' and the special verb form.)
Related Translations
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