Consice English Grammar Topics
present perfect continuous
|There may be clues in a sentence that help you to choose.
But it works in 2 steps:
|1. there is a clue that says:
use the perfect tense:
this week (month...), today
for years (months, weeks...)
since Monday (April...)
already, yet, before
Helen has tried hard this week.
|2. there is a clue that says:
NOT the continuous form:
number of things: 2 letters, 4 books...
number of times: twice, 7 times...
it is repeated: often, usually, every Friday...
They have booked two city trips this month.