1️⃣ Lesson Overview
In this lesson, you will learn about prepositions, which are words that show relationships between nouns or pronouns and other elements within a sentence.
Prepositions often indicate relationships such as time, place, direction, cause, or method. They typically appear before a noun or pronoun to form a prepositional phrase.
Understanding prepositions helps learners describe relationships more clearly and produce grammatically accurate sentences.
By the end of this lesson, you will be able to:
✅ define what a preposition is
✅ recognise common types of prepositions
✅ identify prepositional phrases
✅ understand how prepositions express relationships in sentences
2️⃣ Concept Introduction
Consider the following sentence:
The researcher placed the sample on the table during the experiment.
Two words express relationships between elements in the sentence.
| Word | Function |
|---|---|
| on | shows location |
| during | shows time |
These words are prepositions.
They connect nouns or pronouns to other parts of a sentence and clarify how elements are related.
3️⃣ Core Explanation
A preposition is a word that shows the relationship between a noun or pronoun and another word in the sentence.
Prepositions usually appear before their objects and form prepositional phrases.
Example:
The report was published after the investigation.
| Word | Role |
|---|---|
| after | preposition |
| investigation | object of the preposition |
Together they form the prepositional phrase:
after the investigation
Prepositional phrases help provide additional information about time, place, cause, direction, and other relationships.
4️⃣ Rule Table – Common Types of Prepositions
Prepositions can express several types of relationships.
| Type of Relationship | Prepositions | Example |
|---|---|---|
| Time | before, after, during | The results were reviewed after the experiment. |
| Place | in, on, under | The documents are on the table. |
| Direction | to, into, towards | The technician moved the equipment into the laboratory. |
| Cause | because of, due to | The delay occurred due to technical issues. |
| Method / Means | by, with | The measurements were taken with specialised instruments. |
Example sentence:
The team discussed the results during the meeting.
| Word | Role |
|---|---|
| during | preposition |
| meeting | object of the preposition |
5️⃣ Dive Deeper – Prepositional Phrases
A prepositional phrase consists of a preposition followed by its object.
Structure:
Preposition + noun or pronoun
Example:
The equipment was stored in the laboratory.
| Word | Role |
|---|---|
| in | preposition |
| laboratory | object of the preposition |
The phrase in the laboratory provides information about location.
Prepositional phrases can function as:
-
adjectival phrases (modifying nouns)
-
adverbial phrases (modifying verbs)
Example:
The report on climate research was published yesterday.
| Phrase | Function |
|---|---|
| on climate research | modifies the noun report |
6️⃣ Common Errors
⚠ Common Error 1: Using the Wrong Preposition
Incorrect:
She is responsible of the project.
Correct:
She is responsible for the project.
Explanation:
Certain expressions require specific prepositions.
⚠ Common Error 2: Missing Preposition
Incorrect:
The researcher discussed the issue the meeting.
Correct:
The researcher discussed the issue at the meeting.
Explanation:
A preposition is required to indicate location or context.
⚠ Common Error 3: Using an Unnecessary Preposition
Incorrect:
The researcher entered into the laboratory.
Correct:
The researcher entered the laboratory.
Explanation:
Some verbs do not require additional prepositions.
⚠ Common Error 4: Incorrect Preposition with Time Expressions
Incorrect:
The experiment started in Monday.
Correct:
The experiment started on Monday.
Explanation:
Days of the week require the preposition on.
⚠ Common Error 5: Incorrect Object After Preposition
Incorrect:
The discussion focused on analyse the results.
Correct:
The discussion focused on analysing the results.
Explanation:
Prepositions must be followed by a noun or gerund (-ing form).
7️⃣ Lesson Mastery
After completing this lesson, you should now be able to:
✅ define what a preposition is
✅ identify common prepositions in sentences
✅ recognise prepositional phrases
✅ understand how prepositions express relationships such as time, place, and cause