How to Say "let's begin" in Spanish
The most common Spanish word for “let's begin” is “empecemos” — use this common and versatile option to suggest or command the start of an activity, especially when time is a factor..
empecemos
em-peh-SEH-mos/empeˈsemos/

Examples
¡Ya es tarde! Empecemos la reunión.
It's already late! Let's start the meeting.
Empecemos por el primer capítulo.
Let's begin with the first chapter.
No empecemos a discutir sobre eso otra vez.
Let's not start arguing about that again.
The 'Let's' Form
In Spanish, to say 'Let's [do something],' you use the 'nosotros' form of the special verb mood (called the present subjunctive). 'Empecemos' is exactly that—a way to propose an action to your group.
Spelling Change Rule
The infinitive is 'empezar.' When conjugating verbs that end in -zar before an 'e' (like in 'empecemos'), the 'z' changes to a 'c' to keep the correct 's' sound.
Confusing 'Let's Start' with 'We Start'
Mistake: “Using 'Empezamos' (We start) when you mean 'Empecemos' (Let's start).”
Correction: 'Empezamos' is a statement of fact (We start/We started). 'Empecemos' is a suggestion or command (Let's start!).
comencemos
koh-mehn-SEH-mohs/ko.menˈse.mos/

Examples
Ya tenemos todo listo. ¡Comencemos la reunión!
We already have everything ready. Let's start the meeting!
Si todos están de acuerdo, comencemos a trabajar en el proyecto ahora.
If everyone agrees, let's begin working on the project now.
No quiero que comencemos sin el profesor.
I don't want us to start without the teacher.
The 'Let's' Command
In Spanish, the way you say 'Let's [do something]' is usually by using the 'nosotros' form of a special verb mood (called the present subjunctive). 'Comencemos' is this exact form for 'comenzar'.
Spelling Rule (Z to C)
The base verb is 'comenZar.' When the 'Z' comes before the letter 'E' (like in 'comencemos'), Spanish rules require the 'Z' to change to a 'C' to keep the same sound. This happens only in certain forms.
Mixing up the 'Let's' form
Mistake: “Using the indicative form for a command: 'Comenzamos ahora.'”
Correction: The correct command is 'Comencemos ahora.' The form 'comenzamos' just means 'We are starting' (a statement), not 'Let's start' (a suggestion).
entremos
en-TREH-mos[enˈt̪ɾe.mos]

Examples
¡Qué frío! Entremos ya, por favor.
It's so cold! Let's go in now, please.
Entremos en materia: ¿quién se encargará del proyecto?
Let's get down to business: who will be in charge of the project?
Si no hay más preguntas, entremos a la siguiente fase.
If there are no more questions, let's move on to the next phase.
The 'Let's' Command
In Spanish, the 'nosotros' (we) command, meaning 'Let's...', uses the same form as the present subjunctive: 'entremos'.
Using the Indicative for Commands
Mistake: “Entramos ahora. (Using the normal present tense for a command)”
Correction: ¡Entremos ahora! (Use the special command form for 'Let's...')
Choosing Between 'Empecemos' and 'Comencemos'
Related Translations
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