Introduction to Articles, Prepositions, and Agreement

Welcome! In this chapter of Grammar in Use, we are looking at the "glue" of the English language. While articles, prepositions, and agreement might seem like small details, they are essential for scoring high in Criterion A: Language for your Paper 1 and Paper 2. These elements ensure your writing is accurate, clear, and professional.

Don't worry if these rules feel a bit tricky at first. English grammar has its quirks, but once you spot the patterns, you will communicate much more effectively across all five IB themes, from Identities to Sharing the Planet.


1. Articles: A, An, and The

Articles help your reader understand whether you are talking about something general or something specific. Using them correctly shows a high level of conceptual understanding.

Indefinite Articles: A and An

We use a or an when we mention something for the first time or when we are talking about one of many.

The Rule: Use a before a consonant sound and an before a vowel sound.
Example: "I want to buy a laptop for my schoolwork" (any laptop).
Example: "It was an incredible experience" (one of many experiences).

Definite Article: The

We use the when the listener knows exactly which thing we are talking about, or if there is only one of that thing in existence.

Example: "I saw the film you recommended" (a specific film).
Example: "The environment is everyone's responsibility" (there is only one environment).

The "Zero" Article (No Article)

Sometimes, we don't use an article at all! This usually happens with plural nouns or uncountable nouns when speaking in general terms.

Example: "Technology is changing our lives" (not the technology, because we mean technology in general).
Example: "I love holidays" (holidays in general).

Quick Review:
- A/An = General / First time.
- The = Specific / Known.
- No Article = General concepts or plural totals.


2. Prepositions: Time, Place, and Movement

Prepositions are words that show the relationship between different parts of a sentence. In Language B, these are vital for describing events and explaining causes.

Prepositions of Time (In, On, At)

Think of these as a triangle moving from general to specific:

1. In: For long periods (months, years, centuries).
Example: "The festival is in May."

2. On: For specific days and dates.
Example: "The exam is on Monday."

3. At: For very specific times.
Example: "The lecture starts at 9:00 AM."

Common Preposition Pitfalls

In English, some verbs "partner up" with specific prepositions. If you use the wrong one, it can sound unnatural to an examiner.

Correct: Interested in... (not "interested on")
Correct: Depends on... (not "depends of")
Correct: Good at... (not "good in")

Did you know? Even small changes in prepositions change the meaning. "To shout at someone" sounds angry, while "to shout to someone" just means you want them to hear you from a distance!


3. Subject-Verb Agreement

Agreement is all about harmony. The subject of your sentence must match the verb in number. This is one of the most common areas where students lose marks in Criterion A.

The Basics

If the subject is singular, the verb must be singular. If the subject is plural, the verb must be plural.

\(Singular Subject + Singular Verb\)
Example: "The student studies hard."

\(Plural Subject + Plural Verb\)
Example: "The students study hard."

Tricky Agreement Rules

1. Words that sound plural but are singular:
Words like everyone, everybody, someone, and each always take a singular verb.
Example: "Everyone is (not are) worried about global warming."

2. Collective Nouns:
Words like team, family, or government can be singular or plural depending on whether you see them as one unit or many individuals. In most formal writing (like reports or essays), treating them as singular is safer.
Example: "The government has decided to change the law."

Key Takeaway: Always double-check your "S" endings! Often, if the noun has an "s" (plural), the verb does not, and vice versa.


4. Using Grammar in Context

In the IB Language B course, grammar isn't just a list of rules; it’s a tool for communication. Here is how these concepts appear in your assessment components:

Paper 1 (Writing)

If you are writing a formal letter or a report (Professional texts), your agreement and articles must be precise to maintain a formal register. Errors here can make your message less convincing.

Paper 2 (Reading and Listening)

Pay close attention to prepositions. They often help you answer "where" or "when" questions in the reading comprehension tasks. A single preposition like "except" or "despite" can change the entire meaning of a paragraph!

Individual Oral

When describing a visual stimulus (SL) or a literary extract (HL), use the for specific parts of the image: "In the background, I can see..." This helps the teacher follow your description clearly.


Quick Summary Checklist

Before you finish your writing or speaking task, ask yourself:

1. Articles: Did I use "a" for general things and "the" for specific ones? Did I accidentally put "the" before a general plural (e.g., "The people are..." vs "People are...")?

2. Prepositions: Did I use at for time, on for days, and in for months? Did I check my verb-preposition pairs?

3. Agreement: Does every verb match its subject? (Check those he/she/it endings!)

Note: For more on how to link your sentences together, see the chapter on Connectives and cohesion.