Mastering English Grammar: Key Concepts and Usage
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Present Perfect and Adverbs
The Present Perfect uses an auxiliary verb and a past participle.
- Ever: Used in questions.
- Never: Used in negative sentences.
- Just: Used for recently completed actions.
- Already: Used for actions completed before expected.
- Still: Used for actions that do not change.
- Yet: Used at the end of a sentence.
Adjectives and Adverbs
- So: Used with adjectives and adverbs (e.g., so tall).
- Such: Used with noun phrases (e.g., such a person).
- Too: Used for excessive amounts with adjectives (e.g., too fast).
- Enough: Used after adjectives (e.g., good enough).
- Adjective/Adverb pairs: Fast/fast, hard/hard, good/well.
Causative Verbs
- Make: To force someone to do something.
- Let: To permit someone to do something.
Passive Voice
Active: Subject + Verb + Direct Object + Adverbial (e.g., Mary buys flowers in the market).
Passive: Subject + Verb + Adverbial + Agent (e.g., Flowers are bought in the market by Mary).
Conditionals
- 1st Conditional: If + Subject + Present Simple, Subject + 'll + Infinitive (Possible action and consequence).
- 2nd Conditional: If + Subject + Past Simple, Subject + Would + Infinitive (Improbable situation).
- 3rd Conditional: If + Subject + Past Perfect, Subject + Would have + Past Participle (Hypothetical past situation).
Reported Speech
Tense Changes:
- Present Simple to Past Simple
- Present Continuous to Past Continuous
- Past Simple to Past Perfect
- Present Perfect to Past Perfect
- Will to Would
- Be going to to Past be going to
- Can to Could
- Must to Had to
Time and Place Changes:
- Now to then, today to that day, tonight to that night, yesterday to the day before, tomorrow to the day after, last to the previous, next to the following, this to that, these to those, here to there.
Vocabulary and Expressions
- Common Phrases: Make a mistake, do something wrong, keep quiet about something, feel guilty about something, pretend to do something, make something up, make an excuse, tell the truth, a white lie, a conman.
- Business and Finance: Lower, raise, tax, put off, aim.
- Emotions and States: Regret, miss, look forward to.
- Word Forms: Passion/passionate, moodiness/moody, wealth/wealthy, anxiety/anxious, politeness/polite.