Fixed Prepositional Expressions: Adjective + Preposition and Noun + Preposition

1 Why Some Words Are Best Friends

Some words in English are like best friends. They always go together. We call these fixed prepositional expressions.

When you say ‘I am good at sports’, you must use ‘at’. You cannot say ‘good in sports’ or ‘good for sports’. The word ‘good’ always takes ‘at’ when we talk about abilities. This is not a rule you can guess. You need to learn it.

Many learners try to translate from their first language. This causes mistakes. In English, each adjective and each noun has its own preposition partner. Today you will learn the most common ones. You will see two friends, Luca and Sara, talking about their strengths, their interests, and their worries. Listen to how they use these expressions naturally.

2 The Two Pattern Types

English has two main types of fixed prepositional expressions. The first type is adjective + preposition. The second type is noun + preposition.

These patterns do not follow logic. You cannot guess them. You must memorize them like you memorize a phone number. But don’t worry! Once you know the common ones, you will start to notice them everywhere.

3 Luca and Sara’s Conversation

Luca and Sara walked out of class together. Luca looked worried about something.

‘What’s wrong?’ Sara asked.

‘I’m really worried about my upcoming English exam,’ Luca said. ‘I’m not good at grammar. Can you help me?’

Sara smiled. ‘Well, I am good at grammar, that’s true. But I’m not interested in teaching. I find it boring.’

Luca looked disappointed. ‘Please! I’m afraid of failing. I need to pass this exam.’

‘What are you good at?’ Sara asked. ‘Everyone has different strengths.’

‘I’m good at sports,’ Luca said. ‘And I’m interested in music and history. But grammar? That’s a big problem for me.’

Sara thought for a moment. ‘OK, here’s the difference between us. You learn by doing. I learn by reading. Maybe that’s the reason for your problem with grammar. You need a different approach.’

‘So what’s the solution to my problem?’ Luca asked.

Sara had an idea. ‘There’s a language app with games. You can practice grammar while playing. That might be the answer to your concern.’

Luca’s face brightened. ‘That’s a great idea! Thank you!’

But then he remembered something. ‘Wait – I’m also angry about the cancelled class trip. We were going to practice English in real situations.’

‘I know,’ Sara said. ‘I’m angry about that too. But we can’t change it. Let’s focus on the exam. Download the app tonight. I think it will help.’

Luca nodded. ‘You’re right. Thanks for the advice. Even if you’re not interested in teaching, you just gave me the answer to my biggest concern!’

4 Your Turn to Practice

Now practice what you have learned. Write about yourself using these fixed prepositional expressions.

5 Remember: Learn the Partnerships

Fixed prepositional expressions are partnerships. You cannot guess them. You must memorize them.

Here is a simple strategy: when you learn a new adjective or noun, always learn its preposition partner at the same time. Don’t just learn ‘interested’. Learn ‘interested in‘. Don’t just learn ‘reason’. Learn ‘reason for‘.

Here are the common signal words from today:

Adjectives with fixed prepositions: good at, interested in, worried about, afraid of, angry with/about

Nouns with fixed prepositions: reason for, answer to, difference between, problem with, solution to

When you watch English videos or listen to podcasts, notice these patterns. You will hear them again and again. This is how you make them automatic.

6 What You’ve Learned

Today you learned about fixed prepositional expressions. These are word partnerships that English speakers always use together.

You saw two types: adjective + preposition (like good at, interested in, worried about) and noun + preposition (like reason for, answer to, solution to).

You cannot translate these from your first language. You must memorize them. The best way is to learn the adjective or noun together with its preposition partner from the start.

You read a story about Luca and Sara. You saw how these expressions work in real conversation. You practiced writing about your own strengths and interests using these patterns.

Keep noticing these partnerships when you read or listen to English. Soon they will feel natural!