Portuguese Phrase
Preciso mudar minha agenda.
Meaning
This phrase literally translates to 'I need to change my schedule.' It's a direct and common way to express the necessity of altering one's planned activities or appointments. It implies a personal need to make an adjustment to one's existing commitments.
When to use
Use this phrase when you need to inform someone that you must alter your personal or professional schedule. This could be for rescheduling an appointment, shifting work hours, or adjusting personal plans. It's suitable for both formal and informal contexts.
✦Grammar Breakdown
Precisomudarminhaagenda
Preciso (from 'precisar')
'Preciso' is the first-person singular conjugation of the verb 'precisar' (to need). It's followed by an infinitive verb (like 'mudar') to express 'I need to do something'.
mudar
'Mudar' means 'to change' or 'to move'. In this context, it refers to altering a plan or schedule. It's a regular -ar verb.
minha
'Minha' is the feminine singular possessive pronoun for 'my'. It agrees in gender and number with the noun it modifies, 'agenda'.
agenda
'Agenda' in Portuguese refers to a schedule, diary, or planner. It is a feminine noun, hence 'minha agenda'.
🗨In Conversation
Olá, você está livre na terça-feira?
Hi, are you free on Tuesday?
Ah, desculpe, Preciso mudar minha agenda. Que tal quarta?
Oh, sorry, I need to change my schedule. How about Wednesday?
✕Common Mistakes
Eu preciso alterar a minha agenda.
While 'alterar' is also correct, 'mudar' is more common for schedules. Also, the definite article 'a' before 'minha agenda' is often omitted in spoken Brazilian Portuguese, making 'minha agenda' sound more natural.
Preciso mudar meu agenda.
The word 'agenda' is feminine in Portuguese, so it requires the feminine possessive pronoun 'minha' (my), not 'meu'.
↔Alternatives
Tenho que mudar meu horário.
I have to change my time/schedule.
Preciso remarcar.
I need to reschedule.
Vou ter que ajustar meus planos.
I'll have to adjust my plans.
Cultural Tip
In many Portuguese-speaking cultures, punctuality is valued, but flexibility with schedules can also be common, especially in informal settings. When changing plans, it's polite to offer a brief explanation, even if vague, and suggest alternative times. Using 'Preciso mudar minha agenda' is a straightforward and accepted way to communicate this need.

