Past Simple vs Present Perfect 1
Past Simple vs Present Perfect 2
Comparatives
Superlatives
Guess the phrasal verb
100
Jim: How many times (you/try) to pass your driving test?
Michael: Three times so far.
How many times have you tried to pass your driving test?
100
This singer (be) in our country last year
This singer was in our country last year
100
bad
worse
100
fancy
the fanciest
100
give something to
hand in
200
When (you/go) to Rome?
When did you go to Rome?
200
When (you/start) your job? 
When did you start your job?
200
large
larger
200
generous
the most generous
200
to defend what you believe is right
speak up
300
Jim: (you/speak) to Peter yet?
Michael: No, not yet.
Jim: Have you spoken to Peter yet?
Michael: No, not yet.
300
I (move) house three times in the last five years.
I have moved house three times in the last five years
300
brave
braver
300
scary
the scariest
300
do, perform a task
carry out
400
I (not/see) David at all this week. I don't even know where he is.
I haven't seen David at all this week. I don't even know where he is.
400
My sister (be) to New York three times and she's going again next month
My sister has been to New York three times and she's going again next month
400
dangerous
more dangerous
400
happy
the happiest/the most happy
400
accept a new responsibility (position)
take on
500
You look different. (you/have) a haircut?
You look different. Have you had a haircut?
500
The US President (visit) our country three times in the last two years.
The US President has visited our country three times in the last two years.
500
far
further
500
little
the least
500
to stay up to date with something
keep up with