Many flights are delayed and the airport staff are finding it difficult to board / deal / stop with the situation.
DEAL
I'm sure that it isn't possible for you to climb that steep rock.
You can't ...
You can't CLIMB THAT STEEP ROCK.
We use to / would use to / used to take two guidebooks on holiday, but now all the information is in my smartphone.
We USED TO take two guidebooks...
Can I have a snack until/before we leave home or are we in a hurry?
BEFORE
Let's make a simple chocolate cake. I promise we will be finishing / will have finished baking by 12 o'clock.
WILL HAVE FINISHED
After we had finally turn up / set off / put up the tent, a huge storm started.
PUT UP
I don't know how they got to London, but it's possible that they travelled by train.
They may...
They may HAVE TRAVELLED BY TRAIN.
I didn't use to like / wouldn't like travelling by train as a child - I was afraid of the noise trains make.
I DIDN'T USE TO like travelling by train...
Stir the eggs and sugar unless / until they are well-mixed together.
UNTIL
Will you have used / Will you be using this knife? If not, please wash it and put it in the drawer.
WILL YOU BE USING
Eating r... meat is not safe. Make sure it is cooked all the way through.
RAW
I'm sure that bird is an eagle - its wings spread two metres across.
That bird...
That bird MUST BE AN EAGLE - its wings spread two metres across.
Thick forest (cover) most of the island until the late Middle Ages.
Thick forest USED TO COVER most of the island...
We can prepare this dish without milk ... you are allergic to dairy products.
IF
Tomorrow at 8 o'clock we (watch) a cooking competition.
WILL BE WATCHING
STALE
Let's print out our reservation - it's possible that we'll need it at the hotel.
Let's print out our reservation - we ...
we MIGHT/COULD/MAY NEED IT AT THE HOTEL.
The zoo in our city (not have) any zebras when I was a child.
The zoo in our city DIDN'T USE TO HAVE any zebras...
The turkey is still in the oven, I'll call you ... it is ready.
AS SOON AS/WHEN
This bakery is very popular. I'm sure they (sell) all the cakes by lunchtime.
WILL HAVE SOLD
To appreciate a good French cheese, leave it out of the fridge for a few hours until it is s...
SMELLY
Jack speaks perfect Chinese, so I'm sure he lived in China as a child.
Jack speaks perfect Chinese, so he ...
he MUST HAVE LIVED IN CHINa.
(your granny/let) you stay up late when you were in holiday at her place?
DID YOUR GRANY USE TO LET you stay up...
I'm going to throw away the leftover chicken ... you want to use it to prepare a sandwich.
UNLESS
(Susan / open) her own clinic by the end of the year?
WILL SUSAN HAVE OPENED