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Grammar Rules

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Articles: A, An, The

beginnerDeterminersLevel 1

Rule

Use 'a' before consonant sounds, 'an' before vowel sounds, and 'the' for specific things both speake...

Explanation

Indefinite Articles (a, an):

  • a - used before words that start with...

Examples

[{"correct": "I saw a dog in the park.", "incorrect": "I saw dog in park.", "explanation": "Use 'a'...

Articles: A, An, The

elementaryArticlesLevel 4

Rule

  • The: specific, known nouns
  • A: before consonant sou...

Explanation

Articles are words that define a noun as specific or unspecific.

'The' (definite ar...

Examples

Definite Article 'The':

  • The book on the table is mine.

Conditional Sentences

intermediateConditionalsLevel 1

Rule

Conditional sentences express hypothetical situations and their consequences using if-clauses.

Explanation

Types of Conditionals:

First Conditional (Real Future Possibility):

Struc...

Examples

[{"type": "First Conditional", "example": "If it rains tomorrow, I will stay home.", "explanation":...

Future Tense

intermediateVerb-FormsLevel 1

Rule

Future tense expresses actions or states that will happen after the present moment.

Explanation

Ways to Express Future:

1. Will + Base Verb:

For predictions, promises, and spont...

Examples

[{"structure": "will + base verb", "example": "I will help you tomorrow.", "use": "Promise or sponta...

Modal Verbs

intermediateModal VerbsLevel 5

Rule

Modal verbs express ability, possibility, permission, obligation, and advice.

Explanation

Common Modals:

  • Can/Could: ability, possibility, permission
  • ...

Examples

Ability:

  • I can swim very well.
  • She could play

Modal Verbs

intermediateModalsLevel 1

Rule

Modal verbs express ability, possibility, permission, obligation, and advice.

Explanation

Common Modal Verbs:

Can/Could:

Ability, possibility, polite requests

May/M...

Examples

[{"modal": "can", "example": "I can swim very well.", "meaning": "ability"}, {"modal": "could", "exa...

Past Simple Tense

beginnerTensesLevel 2

Rule

Use past simple for completed actions in the past with specific time references.

Explanation

Formation:

  • Regular verbs: add -ed (walk → walked, play → played)

Examples

Regular Verbs:

  • I walked to school yesterday.
  • She fi...

Present Perfect Tense

intermediateTensesLevel 6

Rule

Use present perfect for actions that started in the past and continue to the present, or for past ac...

Explanation

Formation:

Structure: have/has + past participle

  • I/Yo...

Examples

Experience:

  • I have traveled to many countries.
  • She ...

Present Tense of 'Be' Verb

beginnerTensesLevel 2

Rule

The verb 'be' changes form depending on the subject:

  • I + am
  • <...

Explanation

The present tense of 'be' is used to describe states, characteristics, and identities. It is one...

Examples

Examples:

  • I am a student.
  • You are my frien...

Simple Present Tense

beginnerTensesLevel 3

Rule

Positive: Subject + base verb (+ s/es for he/she/it)

Negative:

Explanation

The simple present tense is used to describe:

  • Habits and routines: I...

Examples

Positive Examples:

  • I work in an office.
  • She studies...

Subject-Verb Agreement

beginnerVerb-FormsLevel 1

Rule

The subject and verb in a sentence must agree in number (singular or plural).

Explanation

Basic Rules:

  • Singular subjects take singular verbs (add -s or -es)<...

Examples

[{"correct": "The cat runs fast.", "incorrect": "The cat run fast.", "explanation": "Singular subjec...