First of all vs Firstly vs For one thing

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

First of all

Top 2000 (comum)

Firstly

Formal Top 3000 (comum) A2 adverb

For one thing

Top 3000 (comum)

Mais formal: Firstly Mais comum: First of all

	First of all	Firstly	For one thing
Pronúncia	🇬🇧 //fɜːst əv ɔːl// 🇺🇸 //fɜrst əv ɔl//	🇬🇧 /["/ˈfɜːstli/"]/ 🇺🇸 /["/ˈfɜːrstli/"]/	🇬🇧 //fɔː wʌn θɪŋ// 🇺🇸 //fɔr wʌn θɪŋ//
Significado	Para começar; o primeiro ponto a mencionar. To start with; the first point to mention.	At the start of a list or explanation.	One reason or point to consider.
Exemplo	First of all, we need to discuss the budget for next year.	There are two reasons for this decision: firstly…	For one thing, it’s cheaper to travel by bus.
Registro	Neutro	Formal	Neutro
Quão comum	Top 2000 (comum)	Top 3000 (comum)	Top 3000 (comum)
Nível CEFR	-	A2	-
Classe gramatical		adverb
Colocações	first of all, we need, first of all, let's discuss, first of all, thank you, first of all, I want to, first of all, remember	firstly and secondly, firstly then, firstly I would like	for one thing, for one important thing, for one specific thing
Antônimos	-	lastly, finally	-
Erros comuns	Using it in the middle of a sentence instead of at the beginning., Confusing with 'firstly', which is more formal., Omitting 'of all' and saying only 'first'.	'Firstly' is not often used in informal contexts., Some learners confuse 'firstly' with 'first,' thinking they can use them interchangeably in all situations., Overusing 'firstly' when listing items can sound overly formal.	Using it without context, making it unclear., Incorrectly following it with unrelated statements., Confusing it with similar phrases like 'for one reason'.
Notas de uso	Frequentemente usado para introduzir o primeiro ponto em uma lista. Adequado em contextos falados e escritos. Evite em ambientes muito formais. Often used to introduce the first point in a list. Appropriate in both spoken and written contexts. Avoid in very formal settings.	Use 'firstly' to introduce the first point in formal writing or speeches. Avoid in casual conversations; 'first' is often preferred instead.	Use this phrase to introduce a reason or point in discussions. It's often used informally but can be appropriate in more serious contexts as well.

Veja em clipes reais

Avengers › Avengers Endgame

First of all, that's horrible.

Agatha Christies Poirot › S1 E1

First of all. . .

Yes. First of all, you're all done.

Avengers › Avengers Endgame

First of all, that's horrible.

Agatha Christies Poirot › S1 E1

First of all. . .

First of all

Avengers › Avengers Endgame

The Aether, firstly, is not a stone.

The Lord Of The Rings › The Fellowship Of The Ring

Do you know how the Orcs first came into being?

Avengers › Avengers Endgame

The Aether, firstly, is not a stone.

The Lord Of The Rings › The Fellowship Of The Ring

Do you know how the Orcs first came into being?

Firstly

Avengers › Avengers Infinity War

Well, for one thing, I'm not asgardian.

For one thing

Perguntas frequentes: First of all vs Firstly vs For one thing

Qual é a diferença entre First of all, Firstly e For one thing?

First of all: To start with; the first point to mention. Firstly: At the start of a list or explanation. For one thing: One reason or point to consider.

Qual é mais formal: First of all, Firstly e For one thing?

Firstly é a mais formal entre elas.

Qual é mais comum: First of all, Firstly e For one thing?

First of all é a mais comum no inglês do dia a dia.

Pode mostrar um exemplo de cada?

First of all: First of all, we need to discuss the budget for next year. Firstly: There are two reasons for this decision: firstly… For one thing: For one thing, it’s cheaper to travel by bus.

Posso usar First of all, Firstly e For one thing de forma intercambiável?

Nem sempre. First of all, Firstly e For one thing 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.