Here is a list of common grammar mistakes and how to correct them.

Try your best to learn and understand these mistakes in order to avoid making them in the future. 

✘ There are so much people.
✔︎ There are so many people.
‘Much‘ and ‘many‘ both refer to a large quantity of something. The difference is that ‘much’ is used for uncountable nouns, and many is used for countable nouns. People is a countable noun; therefore, the quantifier ‘many’ is used.

✘ I am 22 year.
✔︎ I am 22 years old.
When talking about your age, it’s important to put the letter S at the end of the word ‘year’ to make it plural, followed by the word old. However, in everyday English, it’s common to just say “I am 22”.

✘ Its going to be sunny tomorrow.
✔︎ It’s going to be sunny tomorrow.
The possessive pronoun ‘its’ should be a contraction. We must place an apostrophe between the letters T and S because it’s a contraction formed from the words ‘it is’. The apostrophe is put in place of the missing letter.

✘ There is three books in the box.
✔︎ There are three books in the box.
The noun books is plural. Singular verbs are used with singular nouns, and plural verbs are used with plural nouns. Therefore we use the plural verb are. It’s important to make sure that there is a subject-verb agreement for the sentence to make sense.

✘ We met 3 years before.
✔︎ We met 3 years ago.
The correct word is ‘ago‘. This is because the word ‘before‘ is only used when referring to a period of time or an event that occurred.

✘ That’s shes handbag.
✔︎ That’s her handbag.
The word ‘she’s‘ is the contraction of ‘she is‘; therefore, it’s incorrect to use this in the example sentence. The correct possessive adjective is ‘her‘. This indicates that the handbag belongs to the girl.

✘ I like a lot the coffee.
✔︎ I like coffee a lot.
‘Like‘ is a transitive verb; therefore, it requires a direct object to receive the action. A basic sentence consists of a subject (I), a verb (like), and an object (coffee). Any modifying words are also included.

✘ I was boring in class.
✔︎ I was bored in class.
Adjectives ending in -ing are used to describe people or things. Therefore it’s incorrect to use the word ‘boring‘ in this sentence.
Adjectives ending in -ed are used to describe feelings or emotions. Therefore it is correct to use the adjective ‘bored‘.

✘ I have been a teacher since 3 years.
✔︎ I have been a teacher for 3 years.
‘Since‘ is used when referring to a specific time, for example, I have been a teacher since 2015.
‘For‘ is used when talking about a period of time. In this example, 3 years is a period of time; therefore, it is correct to use the word ‘for‘.

✘ I have completed the five-months course.
✔︎ I have completed the five-month course.
The letter S does not need to be added to the adjective five-month. This is because adjectives are usually singular unless used as predicates, for example, the course lasts five months. This is the same when referring to days, weeks, or years.

✘ Where I can buy a wedding dress?
✔︎ Where can I buy a wedding dress?
The correct question format is the question word + auxiliary verb + subject + main verb.
‘Where‘ is the question word, ‘can‘ is the auxiliary verb, ‘I‘ is the subject, and ‘buy‘ is the main verb.

✘ Zaras bag is red.
✔︎ Zara’s bag is red.
In order to show that the bag belongs to Zara, we must place an apostrophe followed by the letter S.

✘ Jane are studying in the library.
✔︎ Jane is studying in the library.
The noun Jane is singular. Singular verbs are used with singular nouns, and plural verbs are used with plural nouns. Therefore we use the singular verb ‘is‘. It’s important to make sure that there is a subject-verb agreement for the sentence to make sense.

✘ I like to play the basketball.
✔︎ I like to play basketball.
The mistake here is the incorrect use of the article ‘the‘. We do not use articles before the names of sports.

✘ I am go to school.
✔︎ I am going to school.
The wrong verb tense is used in the first example. We must make sure to use the correct verb form. The correct verb is ‘going‘ because we are talking about an action that is ongoing now; therefore, the verb is in the present continuous tense.

✘ She live in Spain.
✔︎ She lives in Spain.
With third-person singular nouns or pronouns as subjects, we must add the letter S to the end of the verb. So the correct verb is ‘lives‘.

✘ Your beautiful.
✔︎ You’re beautiful.
The possessive pronoun ‘your‘ should be a contraction because the adjective belongs to the person being spoken to. We must place an apostrophe to indicate the contraction from ‘you are‘. The apostrophe is put in place of the missing letter ‘a‘.

✘ She have gone to the park.
✔︎ She has gone to the park.
The subject pronoun ‘she‘ does not agree with the verb ‘have‘. The verb ‘have‘ is used with subject pronouns ‘you‘, ‘we‘, and ‘they‘. Whereas the verb ‘has‘ is used with subject pronouns ‘he‘ and ‘she‘.

✘ I am very good in English.
✔︎ I am very good at English.
If you want to express how good your English skills are then it is correct to say “I am very good at English“. However, if you want to express how good you are in your English class then you can say “I am very good in English class“.

✘ Sam went to the shopping centre, he bought a shirt.
✔︎ Sam went to the shopping centre. He bought a shirt.
This is an example of a comma splice. There are two independent clauses that are joined with a comma and no conjunction. This is a common mistake that should be avoided. There are four ways we can correct this.
1) Place a full stop between the two clauses. ➜ Sam went to the shopping centre. He bought a shirt.
2) Add a conjunction just before the comma. ➜ Sam went to the shopping centre, and he bought a shirt.
3) Add a semicolon instead of a comma. ➜ Sam went to the shopping centre; he bought a shirt.
4) Make the second clause dependent. ➜ Sam went to the shopping centre where he bought a shirt.