12
📘Grado 9°
Periodo 4
Tema 3 de 3

Infinitive Phrases

Expresar propósito, intención y planes con to + verbo.
Colegio Ángeles del NorteInglés · L. R. Montaño Rincón
❓Antes de aprender · pregunta problematizadora

Why did you do it?

01Piensa en algo que hiciste esta semana.
02¿Para qué lo hiciste?
03Respóndelo en inglés empezando por “to…”.
🎯Al terminar este tema podrás

Desempeños

I
Usar el infinitivo para expresar propósito.
II
Reconocer verbos que exigen infinitivo y no gerundio.
III
Construir frases con in order to y so as to.
💡La idea central

El para qué de la acción

La frase de infinitivo responde a la pregunta why?. En inglés, el propósito casi nunca se dice con for + verbo: se dice con to + verbo.
“I came here to learn English.”
“For to learn” no existe en inglés.
🧩La estructura
Acción
She studies hard
+
Enlace
to
+
Propósito
pass the exam
He saved money to buy a guitar.Versiones formales: in order to, so as to.

Tres usos del infinitivo

Propósito
I went out to buy bread.
She called to apologise.
responde why?
Tras adjetivo
It is easy to learn.
I am happy to help.
adjetivo + to
Tras verbo
I want to go.
They decided to stay.
verbo + to
🔤Qué sigue a cada verbo

Infinitivo o gerundio

+ INFINITIVO
wantdecidehope
needpromiseagree
learnplanoffer
+ GERUNDIO
enjoyavoidfinish
suggestmindpractise
keepmissconsider

Puntos clave

to + base — nunca to + -ing
to learn ✓ / to learning ✗
in order to — versión formal
in order to improve
so as not to — propósito negativo
so as not to be late
for + noun — sí con sustantivos
I came for the book.
too / enough — llevan infinitivo
too tired to walk
Sujeto propio — for someone to do
It is important for us to try.

To + verbo vs. For + sustantivo

to + verbo
I went to the shop to buy milk.
El propósito se expresa con una acción.
for + sustantivo
I went to the shop for milk.
El propósito se expresa con una cosa.
Si después viene un verbo, siempre to, nunca for.
📖Lectura contextualizada

Why I Learn Languages

I started learning English to understand songs. Later I studied in order to travel alone. Now I practise every day so as not to forget what I know. I want to work abroad and I hope to study abroad next year.

propósitoverbo + infinitivo
✅Opción múltiple · 1 de 3

She went to the library ______ a book.

Afor borrow
Bto borrow
Cfor borrowing
Dborrow
✅Opción múltiple · 2 de 3

They decided ______ at home.

Astaying
Bto stay
Cstay
Dfor staying
✅Opción múltiple · 3 de 3

He is too tired ______ .

Afor run
Bto run
Crunning
Drun
🤔True or False

¿Verdadero o falso?

El propósito se expresa con to + verbo.
TRUE
FALSE
“I came for to see you” es correcto.
TRUE
FALSE
Enjoy va seguido de gerundio.
TRUE
FALSE
In order to es la versión formal de to.
TRUE
FALSE
Want va seguido de gerundio.
TRUE
FALSE
🔗Asociar · matching

Verbo → complemento

Haz clic en el verbo y luego en la forma que lo sigue.
want
enjoy
decide
avoid
to leave
leaving
travelling
to travel
📝Completar el espacio

Fill in the blanks

not
staying
to
order
1. She called   apologise for the delay.
2. He works hard in   to help his family.
3. They enjoy   at home on Sundays.
4. I left early so as   to be late.
🔢Ordenar la oración

Build the sentence

to
exam
every
the
studies
pass
night
order
She
in
🔍Encontrar el error

Find the mistake

I came here for learn English today
They decided staying at home
He is too tired for run this morning
🏁Después de aprender

Lo esencial

to + verbo para el propósito · in order to / so as to en registro formal · cada verbo pide infinitivo o gerundio.
Tarea: escribe diez oraciones explicando por qué haces cosas cotidianas, usando infinitivos de propósito.
Puntaje de la clase
0/20