English Grammar and Vocabulary
English Grammar
Grammar Rules
Relative Pronouns: Use who/that for people, which/that for objects, that for people or objects, when for time, whose for possession, and where for place.
Defining vs. Non-Defining Clauses: Non-defining clauses provide extra information and are set off by commas. Defining clauses provide essential information and are not set off by commas. Defining clauses can often omit the relative pronoun.
Modal Verbs
Expressing Ability: can, be able to
Giving Advice: should, shouldn't
Expressing Obligation: have to, must
Expressing Lack of Obligation: don't have to, needn't
Expressing Possibility: may, might
Expressing Certainty (True): must
Expressing Certainty (Impossible): can't
Making Polite Requests: could, would
Expressing Prohibition: mustn't
Perfect Modals:
- Criticism/Regret: should have + past participle
- Certainty (True): must have + past participle
- Possibility (True): might/may have + past participle
- Ability but Did Not: could have + past participle
- Intention but Did Not: would have + past participle
Vocabulary and Connectors
Idioms
- Throw in the towel (give up)
- The ball's in your court (it's your turn to act)
- Hitting below the belt (cruel, unfair)
- Learn the ropes (understand how things work)
- Had a head start (began earlier)
Prefixes
Over- (too much, excessively)
Connectors
Addition
- In addition, furthermore, moreover (also)
- To sum up, in conclusion (in summary)
- Also, what's more, as well as, in addition to
Contrast
- However, nevertheless (even so)
- On the one hand, on the other hand
- Although, in spite of, despite (even though)
Gerunds and Infinitives
Gerunds (-ing):
- After some verbs (enjoy, like, love, don't mind, regret)
- After prepositions (for, without, of)
- Some expressions (rather than, despite)
- Beginning of a sentence (e.g., Swimming is very...)
Verbs with "to": want, decide, warn, etc.
"To" or Gerund (No Change in Meaning): We started to sing. We started singing.
"To" or Gerund (Different Meaning): She stopped to watch the film (She stopped doing something else to watch the film). She stopped watching the film (She ceased watching the film).
Infinitive (No Preposition): let, make (e.g., Don't make me cry.)
Connectors: Cause and Result
Cause: because, since, as (followed by a clause); because of, due to, as a result of (followed by a noun)
Result: so, as a result, therefore, consequently, for this reason, as a consequence
Weather and Disaster Vocabulary
seriously, badly, damaged, demolish, collapsed, homeless, citizens, injured, hurt, died, death toll, rubble, crack, gather, avoid, according to, sources say, bitter, blizzard, cage, cattle, cattleman, caught red-handed, chilly, conservation, cosy, cub, deadly, drought, eerie, endangered, fee, fierce, forecast, habitat, humidity, hunting, in captivity, lifelong, lifestyle, lightning, melt, mild, overcast, predator, predictable, put on, rainfall, rather than, rental agency, rescue, run a business, company, shake, shiver, be short of, sink, slip, slippery, soaking wet, treacherous, weather forecaster, witness