Ago vs Before vs Previously

Quando usar cada um em inglês, com significado, registro e exemplos.

Ago

Top 1000 (muito comum)A1adverb

Before

Top 1000 (muito comum)A1preposition

Previously

Top 2000 (comum)B1adverb
 AgoBeforePreviously
Pronúncia🇬🇧 /["/əˈɡəʊ/"]/🇺🇸 /["/əˈɡəʊ/"]/🇬🇧 /["/bɪˈfɔː(r)/"]/🇺🇸 /["/bɪˈfɔːr/"]/🇬🇧 /["/ˈpriːviəsli/"]/🇺🇸 /["/ˈpriːviəsli/"]/
Significadono passado; antes de agorain the past; before nowAt an earlier time than something else.Antes de agora; mais cedo.Before now; earlier.
Exemplotwo weeks/months/years agoI always wash my hands before dinner.The building had previously been used as a hotel.
RegistroNeutroNeutroNeutro
Quão comumTop 1000 (muito comum)Top 1000 (muito comum)Top 2000 (comum)
Nível CEFRA1A1B1
Classe gramaticaladverbprepositionadverb
Colocaçõestwo years ago, just ago, long agobefore dinner, before school, before sunrisepreviously mentioned, previously discussed, previously stated, previously introduced, previously reported
Antônimosfutureafter, followingsubsequently, afterwards
Erros comunsIncorrectly using 'ago' with future events., Confusing 'ago' with 'since' when discussing past time., Omitting the time expression, e.g., saying 'I saw him ago.'Confusing 'before' with 'after'., Using 'before' to refer to an event that can only happen afterwards., Omitting the necessary clause or event after 'before'.Using 'previous' instead of 'previously' in a sentence., Confusing 'previously' with 'currently' which means now., Misplacing 'previously' in a sentence and changing the meaning.
Notas de usoUse 'ago' para se referir a um momento específico no passado. Geralmente é usado em contextos informais e neutros, mas evite usá-lo em escrita ou discursos muito formais.Use 'ago' to refer to a specific time in the past. It's typically used in informal and neutral contexts, but avoid using it in very formal writing or speeches.Used to indicate a time prior to an event or action. Common in both spoken and written language. Avoid using it in extremely formal writing; in that context, consider 'prior to'.Use 'anteriormente' para conectar eventos passados com o presente. É adequado para contextos falados e escritos, mas pode soar muito formal em conversas casuais.Use 'previously' to connect past events with the present. It's suitable for both spoken and written contexts but may sound too formal in casual conversations.

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Ago

Perguntas frequentes: Ago vs Before vs Previously

Qual é a diferença entre Ago, Before e Previously?

Ago: in the past; before now Before: At an earlier time than something else. Previously: Before now; earlier.

Qual é mais avançada: Ago, Before e Previously?

Previously é o nível mais alto, em B1, na escala CEFR.

Ago, Before e Previously estão no mesmo nível CEFR?

Ago: A1, Before: A1, Previously: B1 na escala CEFR.

Que classe gramatical são Ago, Before e Previously?

Ago: adverb, Before: preposition, Previously: adverb.

Pode mostrar um exemplo de cada?

Ago: two weeks/months/years ago Before: I always wash my hands before dinner. Previously: The building had previously been used as a hotel.

Posso usar Ago, Before e Previously de forma intercambiável?

Nem sempre. Ago, Before e Previously são relacionadas e às vezes se sobrepõem, mas diferem em registro, frequência e uso, então trocar uma pela outra pode mudar o sentido ou o tom. Veja as diferenças acima antes de substituir.

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