The correct completion of the sentence is 'would be', making it read 'If I saw every show in Las Vegas, I would be very tired!'. This use of 'would' indicates a hypothetical situation in English grammar. It illustrates a second conditional structure, which discusses unlikely outcomes.
;
The sentence "If I saw every show in Las Vegas, I ____ (be) very tired!" is an example of a conditional sentence. Conditional sentences often express hypothetical situations and their possible outcomes. Here, the sentence is in the second conditional form, which is used to describe unlikely or imaginary situations and their possible consequences in the present or future.
In a second conditional sentence, the structure is typically:
'If + past simple, ... would + base verb.'
In this specific case, we have:
If clause : 'If I saw every show in Las Vegas,' - Here, 'saw' is the past simple form of 'see.'
Main clause : 'I ____ (be) very tired!' - Here, we need to use 'would be' for the main clause.
Putting this together, the complete sentence would be:
"If I saw every show in Las Vegas, I would be very tired!"
By using 'would be,' the sentence communicates that seeing every show in Las Vegas is an unlikely situation, and as a result, the person would feel very tired. This helps convey a sense of imagination or speculation, which is a key part of the second conditional.