English Grammar: Verb Tenses, Relative Pronouns, and Vocabulary
Present Perfect Simple
Form
have/has + past participle
Uses
- An action that started in the past and continues until the present.
Example: Emojis’ popularity has spread since the 2000s. - An action that took place at an unspecified time in the past and is relevant to the present.
Example: He’s already developed a few apps.
Time Expressions
never, ever, already, just, yet, recently, lately, in recent years, for, since, how long…?
Past Perfect Simple
Form
had + past participle
Use
An action that happened before another action in the past.
Example: They heard that Sam and Delia had never met face-to-face.
Time Expressions
already, by the time, after, before, until, never, just
Present Perfect Continuous
Form
have/has + been + verb + -ing
Use
An action that started in the past and has continued, uninterrupted, to the present.
Example: He has been writing a blog since 2007.
Time Expressions
since 2012, all day/night/morning, for a year, how long…?
Future Perfect Simple
Form
will + have + past participle
Use
An action completed by a specific time in the future.
Example: Robots will have become capable of thinking independently by 2020.
Time Expressions
by this time next week, by 2 o’clock, by the end of…, by then, by July, in five months
Future Continuous
Form
will + be + verb + -ing
Uses
- Future plans
Example: I‘ll be studying computer science next year. - An action in progress at a specific time in the future.
Example: Soon, robots will be performing dangerous jobs.
Time Expressions
at this time tomorrow, soon, next…, on Monday, in the next decade
Relative Pronouns
- who/that (people)
Example: I have a friend who/that studied in China. - which/that (objects, animals)
Example: The schoolbag which/that I want is expensive. - when (time)
Example: The 1990s was the decade when computer studies became popular at school. - where (place)
Example: This is a school where you can study journalism. - whose (possession)
Example: That’s the teacher whose classroom is on the first floor.
Vocabulary
Nouns
accomplishment, degree, discipline, step, aid, assignment, struggle, income, subject, curriculum, support, pressure
Verbs
accept, achieve, attend, encourage, miss, revise, allow, disrupt, appear
Adjectives
acceptable, delighted, remarkable, achievable, energetic, secure, famous, impressive, athletic, stressed, strict, competitive, compulsory, luxurious, universal, various
Phrasal Verbs
catch on, drop out, get on with, go over, make up for, put off
Expressions
pay attention, sense of belonging