You have received a letter from your pen friend in which they write that their mum has added them as a friend on social network they use.Your pen friend feels embarrassed about the situation and is unhappy that their mum comments on every new picture they post. Write an answer to them in which you
2.I advice you to try the new Thai restaurant. You should try to visit…
3.It's possible that the museum is open on Sundays. The museum may be open on Sundays
4.It's not necessary for us to hire a car. We needn’t hire a car
5.He is able to repair his car himself. He can repair the car himself
6.Guests are required to show their passports at reception. Guests must show their …
7.Photography is prohibited here. You must not photograph here
8.The archaeologists was obliged to show his ID to visit the excavation. The archaeologists had to show his….
9.It's a good idea to buy tickets in advance. You should buy ….
10.It wasn't necessary to leave so early. We needn’t have left so early
Cambridge Dictionary
Поиск: грамматика
Present perfect continuous (I have been working)
Grammar > Verbs > Tenses and time > Present > Present perfect continuous (I have been working)
из English Grammar Today
Present perfect continuous: form
We use have/has + been + the -ing form of the verb.
+
she, he, it
I, you, we, they
has
have
been working.
−
she, he, it
I, you, we, they
(full form)
has not
have not
been working.
she, he, it
I, you, we, they
(short form)
hasn’t
haven’t
? +
Has
Have
she, he, it
I, you, we, they
been working?
? −
(full form)
Has
Have
she, he, it
I, you, we, they
not
been working?
(short form)
Hasn’t
Haven’t
she, he, it
I, you, we, they
Present perfect continuous: uses
Recent past activities
We use the present perfect continuous to talk about a finished activity in the recent past. Using the present perfect continuous focuses on the activity.
We don’t give a specific time. Even though the activity is finished, we can see the result in the present:
I’ve just been cleaning the car. (The car is wet and clean.)
It’s been snowing. (The ground is covered in snow.)
What have you been buying?
One continuing event
We use the present perfect continuous for a single activity that began at a point in the past and is still continuing:
I’ve been reading your book – it’s great. (I’m still reading it.)
He’s been living in the village since 1995. (He is still living in the village.)
She has been writing her autobiography since 1987.
Repeated continuing events
We use the present perfect continuous to talk about repeated activities which started at a particular time in the past and are still continuing up until now:
I’ve been going to Spain on holiday every year since 1987.
I haven’t been eating much lunch lately. I’ve been going to the gym at lunchtimes.
She’s been playing tennis on and off for three years.
How long …?
We often use the present perfect continuous to ask and answer questions about the duration of an activity. We use the question How long …+ present perfect continuous:
A:
How long have you been waiting for me?
B:
About ten minutes. Not too long. (I’ve been waiting for about ten minutes