Dear sir/ madam
Canyou please let me know whether these sentences are correct?
1. He uses much salt in his cooking.
2. There is much juice in the glass.
3. There is much pepper in the bottle.
Thank you.But i would like to know whether the sentences are grammatically correct?
Yes, they are grammatical.
There are some expressions that do use it (e.g. I wish you much luck) but here in Canada, if someone uttered a sentence such as those in your examples, people would probably assume he was a non-native speaker.
Thankyou for that explanation Fiona. Sometimes it's difficult to expain why a given phrase is, or sounds wrong!