Answer :
Let's create sentences using the words provided, incorporating 'shouldn't have' or 'I wish' for better understanding. Each situation can be expressed as something that was a mistake or a regret using 'shouldn't have' or 'I wish'.
He put a handful of salt in the spaghetti sauce! (pinch)
- He shouldn't have put a handful of salt in the spaghetti sauce; he should have used just a pinch.
- I wish he had used just a pinch of salt in the spaghetti sauce.
The refugees were drinking dirty water. (boil)
- They should have boiled the water before drinking it to make it safe.
- I wish they had boiled the water before drinking it.
Those children were rude to their teacher. (apologise)
- They should have apologized to their teacher.
- I wish they had apologized to their teacher.
My sister's never learnt to swim. (younger)
- She should have learnt to swim when she was younger.
- I wish she had learnt to swim when she was younger.
I feel sick after eating two chocolate cakes. (any)
- I shouldn't have eaten any of the chocolate cakes.
- I wish I hadn't eaten any of the chocolate cakes.
We went to bed very late last night. (earlier)
- We should have gone to bed earlier last night.
- I wish we had gone to bed earlier last night.
Now, let's use the conjunctions 'unless', 'until', or 'as soon as' to complete the sentences:
Unless you leave now, you'll miss the start of the film.
She waited for him until six o'clock, but he didn't come.
I'll call you back as soon as I've finished my dinner.
Old Mrs. Howe won't hear you unless you speak louder.
He didn't like olives until he went to live in Italy.
You won't get what you want unless you say please.
These exercises help improve your understanding of different grammatical structures in English, specifically in expressing hypotheticals and sequencing events.