After prepositions
As a subject
After some verbs
After adjectives
To show purpose
100

I always speak without......

I always speak without thinking

100

................... video games with friends is always a good plan.

Playing video games with friends is always a good plan.

100

They're planning ...................... a new museum soon.

They're planning to open a new museum soon.

100

Doctors say it won't be easy ................. a cure for the virus.

Doctors say it won't be easy to find a cure for the virus.

100

Scientists use telescopes ................ at the galaxy.

Scientists use telescopes to look at the galaxy.

200

They worked all night without ...........

They worked all night without stopping

200

...................... new places is a great challenge.

Exploring new places is a great challenge.

200

Adrian really wants ....................... new games.

Adrian really wants to invent new games.

200

It's important ............... all the files before you send them.

It's important to check all the files before you send them.

200

Teachers use technology ................learning easier for their students.

Teachers use technology to make learning easier for their students.

300

Astronauts must train hard before...........to the moon.

Astronauts must train hard before travelling to the moon.

300

..................... science fiction films on TV is a good way to relax.

Watching science fiction films on TV is a good way to relax.

300

We intend ..................... homework before midnight.

We intend to finish homework before midnight.

300

It would be very exciting ................ around the world with friends.

It would be very exciting to travel around the world with friends.

300

Daniel turned on the TV .................. a documentary about tornadoes.

Daniel turned on the TV .................. a documentary about tornadoes.

400

Is this animal in danger of.....................extinct?

Is this animal in danger of becoming extinct?

400

....................... was my grandma's favourite chore.

Cooking was my grandma's favourite chore.

400

The astronomers used a big telescope ....................... at the new planet.

The astronomers used a big telescope to look at the new planet.

400

It's impossible ........................ this Math exercise!

It's impossible to understand this Math exercise!

400

There are a lot of signs ................... drivers the correct road.

There are a lot of signs to show drivers the correct road.

500

Let's go out after ....................... work this evening.

Let's go out after ....................... work this evening.

500

....................... about global warming can be a good way of .................... it.

Learning about global warming can be a good way of preventing it.

500

Are you planning .................... to the podcast about economy?

Are you planning to listen to the podcast about economy?

500

It could be interesting ................ more about ocean animals.

It could be interesting to read more about ocean animals.

500

Can I borrow your book ................... for the exam next week?

Can I borrow your book to study for the exam next week?