When we are certain something is true we use...
Must be
of or from outside the earth or its atmosphere
Extraterrestrial
Should/Shouldn't:
'I failed my exam!'
I should have studied more
Have a look at this old watch. Do you think it's ... much?
Worth
Having a very high value
Valuable
Tomorrow afternoon, we ... (have) a drink in a cafe next to the ocean.
will be having
to need to pay someone
to owe
"She wanted to go for the ultimate aviation prize..."
In this sentence 'go for' means
try to achieve
James works in ... He's a judge.
law
'by solving'
a way to do something
By the time I am 35, I ... (work) in education for over ten years
will have worked
unusual or surprising; difficult to understand or explain
Strange
"The journey was going well..."
In this sentence 'go well' means...
happen as you want
What ... I ... (do) three years from now? I have no idea.
You've been working all day. You ... be tired.
must
I hope that three years from now, I ... (visit) one or two new countries.
will have visited
something you get for a really good price
a bargain
Should/Shouldn't:
'I ate 5 slices of pizza! Now I feel sick.'
I shouldn't have eaten so much pizza
The test is from 9 to 12 tomorrow morning. So at 10 o'clock, I ... (not finish) it.
won't have finished
I'm not sure but, but I think that man ... need our help. I don't think he can swim.
might
She ... gotten lost. Why else is she late?
must have
people who make the big decisions in a company
management
The streets were empty and there was a m.... feeling in the air.
What is the rule for Future Perfect
____ + _____ + _______
will + have + past participle
It ... be fake. The scientists aren't sure yet, but they still have more to research.
could