Certainly vs Definitely vs Sure as he's born vs Undoubtedly

Cuándo usar cada una en inglés, con significado, registro y ejemplos.

Certainly

Top 1000 (muy común)A2adverb

Definitely

Top 1000 (muy común)A2adverb

Sure as he's born

InformalMás de 10 000 (menos común)

Undoubtedly

FormalTop 5000 (bastante común)C1adverb
Más formal: Undoubtedly
 CertainlyDefinitelySure as he's bornUndoubtedly
Pronunciación🇬🇧 /["/ˈsɜːtnli/"]/🇺🇸 /["/ˈsɜːrtnli/"]/🇬🇧 /["/ˈdefɪnətli/"]/🇺🇸 /["/ˈdefɪnətli/"]/🇬🇧 //ʃʊə əz hiːz bɔːn//🇺🇸 //ʃʊr əz hiz bɔrn//🇬🇧 //ʌnˈdaʊtɪdli//🇺🇸 //ʌnˈdaʊtədli//
SignificadoDefinitivamente; por supuesto.Definitely; for sure.Sin duda, por supuestoFor sure, without a doubtcertain or sureDefinitivamente; sin duda.Definitely; without a doubt.
EjemploWithout treatment, she will **almost certainly** die.I definitely remember sending the letter.I will be there tomorrow, sure as he's born.She is undoubtedly the best candidate for the position.
RegistroNeutralNeutralInformalFormal
Qué tan comúnTop 1000 (muy común)Top 1000 (muy común)Más de 10 000 (menos común)Top 5000 (bastante común)
Nivel CEFRA2A2-C1
Categoría gramaticaladverbadverbadverb
Colocacionescertainly agree, certainly possible, certainly not, certainly true, certainly yesdefinitely agree, definitely believe, definitely knowsure as can be, sure as usualundoubtedly true, undoubtedly clear, undoubtedly helpful
Antónimosuncertainly, doubtfullydoubtfully, uncertainlyuncertain, unlikely, doubtfuldoubtfully, questionably, uncertainly
Errores comunes'Certainly' is often incorrectly used in place of 'certain' in adjectives., Learners might confuse 'certainly' with 'definitely' without noticing the subtle nuance., Some learners use 'certainly' in inappropriate contexts, such as casual greetings.Often confused with 'defiantly' which means resisting authority., Sometimes spelled incorrectly as 'definately'.Using in formal writing contexts, Confusing with similar expressions like 'sure as sugar', Misplacing the phrase within sentencesConfused with 'undoubtably', which is incorrect., Omitting it when certainty is implied., Using it in informal contexts where 'definitely' is more suitable.
Notas de usoUsa 'ciertamente' cuando quieras enfatizar una afirmación o acuerdo. Es más formal que 'seguro' y funciona bien en entornos profesionales, pero puede sonar demasiado fuerte en conversaciones informales.Use 'certainly' when you want to emphasize affirmation or agreement. It is more formal than 'sure' and works well in professional settings, but might feel too strong in casual conversations.Usa 'definitivamente' para enfatizar certeza. Funciona bien tanto en inglés hablado como escrito. Evita usarlo en contextos demasiado formales donde alternativas como 'ciertamente' podrían ser más adecuadas.Use 'definitely' to emphasize certainty. It fits well in both spoken and written English. Avoid using it in overly formal contexts where alternatives like 'certainly' might be more suitable.Used often in spoken language, this phrase conveys strong certainty about something. It's not typically used in formal writing or situations.Se usa para enfatizar certeza o fuerte creencia; típicamente en escritos formales o discursos, no es común en conversaciones informales.Used to emphasize certainty or strong belief; typically in formal writing or speeches, not common in casual conversation.

Míralo en clips reales

Certainly
Definitely
Sure as he's born

Preguntas frecuentes: Certainly vs Definitely vs Sure as he's born vs Undoubtedly

¿Cuál es la diferencia entre Certainly, Definitely, Sure as he's born y Undoubtedly?

Certainly: Definitely; for sure. Definitely: For sure, without a doubt Sure as he's born: certain or sure Undoubtedly: Definitely; without a doubt.

¿Cuál es más formal: Certainly, Definitely, Sure as he's born y Undoubtedly?

Undoubtedly es la más formal de estas.

¿Cuál es más avanzada: Certainly, Definitely, Sure as he's born y Undoubtedly?

Undoubtedly es la de nivel más alto, en C1, en la escala CEFR.

¿Puedes mostrar un ejemplo de cada una?

Certainly: Without treatment, she will **almost certainly** die. Definitely: I definitely remember sending the letter. Sure as he's born: I will be there tomorrow, sure as he's born. Undoubtedly: She is undoubtedly the best candidate for the position.

¿Puedo usar Certainly, Definitely, Sure as he's born y Undoubtedly indistintamente?

No siempre. Certainly, Definitely, Sure as he's born y Undoubtedly están relacionadas y a veces se solapan, pero difieren en registro, frecuencia y uso, así que cambiar una por otra puede alterar el significado o el tono. Revisa las diferencias de arriba antes de sustituir.