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English grammar

Promises with will: I promise/swear (that) I'll…

Make a strong promise using promise/swear + will.

From the scene I swear

In short

Make a strong promise with I promise or I swear (that) + will. They can also stand alone at the end.

Your turn

Which one goes with promise + will, other subject?

Options: I won't lose them, I promise · I promise they'll be in my pocket · I swear I'll look after them

Show answer

promise + will, other subject → I promise they'll be in my pocket

How it works

To make a strong promise, use promise or swear + (that) + will: I swear (that) I'll look after them; I promise (that) they'll be safe.

Your turn

Pick the word that fits the line.

I promise they'll be (blank) my inside pocket.

Options: at · in · on

Show answer

I promise they'll be in my inside pocket.

Te prometo que estarán en el bolsillo interior.

Good to know

I promise / I swear can also stand alone, at the start or end of a sentence.

Your turn

Pick the word that fits the line.

I (blank) leave them anywhere, I promise.

Options: haven't · won't · not

Show answer

I won't leave them anywhere, I promise.

No se me olvidarán, te lo prometo.

a promise about the future I swear I'll look after them

Javi

I swear I'll look after them like treasure.

Te juro que los cuidaré como un tesoro.

Your turn

What fills the gap?

(blank) like treasure.

Options: I promise they'll be in my pocket · I won't lose them, I promise · I swear I'll look after them

Show answer

Javi

I swear I'll look after them like treasure.

Te juro que los cuidaré como un tesoro.

promise + will, other subject I promise they'll be in my pocket

Your turn

What goes with I promise they'll be in my pocket?

Options: a promise about the future · stands alone, at the end · promise + will, other subject

Show answer

I promise they'll be in my pocket → promise + will, other subject

stands alone, at the end I won't lose them, I promise

Javi

I won't lose them. I swear on my mum.

No los perderé. Te lo juro por mi mamá.

Your turn

What fills the gap?

(blank). I swear on my mum.

Options: I won't lose them · I swear I'll look after them · I promise they'll be in my pocket

Show answer

Javi

I won't lose them. I swear on my mum.

No los perderé. Te lo juro por mi mamá.

a stronger promise I swear on my mum

Javi

I won't lose them. I swear on my mum.

No los perderé. Te lo juro por mi mamá.

Your turn

What fills the gap?

I won't lose them. (blank).

Options: I swear on my mum · I swear I'll look after them · I promise they'll be in my pocket

Show answer

Javi

I won't lose them. I swear on my mum.

No los perderé. Te lo juro por mi mamá.

Practise it in the story

Meet this rule inside a short animated scene. Answer as it plays, then say the lines yourself.

Practise free in the app
See all forms
Promises with will: I promise/swear (that) I'll…
a promise about the futureI swear I'll look after them
promise + will, other subjectI promise they'll be in my pocket
stands alone, at the endI won't lose them, I promise
a stronger promiseI swear on my mum
More lines from the story
  • JaviI promise they'll be in my inside pocket.Te prometo que estarán en el bolsillo interior.
  • JaviI won't leave them anywhere, I promise.No se me olvidarán, te lo prometo.
  • JaviI swear: I'll keep them longer than my jobs.Te lo juro: los guardaré más tiempo que mis trabajos.
  • TomásJavi, when we buy the rings, you're keeping them.Javi, cuando compremos los anillos, los guardas tú.

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