Can someone tell me if my sentences are correct, please? I'll be very thankful to you.

•When I arrived at the hotel, someone was cleaning my room
•If I had known that he was so rude, I would have never married him.
•You would tell the truth if you were good friends
•I wouldn’t have answered the phone, if I had known that it was him
•If you don’t water the garden, the plants will die.
•Look! The man who is crossing the road is my granpa.
•He had been driving for two days when he reached his destination at last.
•I won’t be able to go skiing with you because I will be very busy studying next week.
•You have been packing all morning, do you need any help? (it's all morning you have been packing??)
•When I arrived last night, my mother had already come back and was giving dinner to children.
• You shouldn’t eat many fats which are bad for you health. ase

grandpa (spelling)

What's the "ase" at the end?

(Is this you, Franco?)

put periods in and on I wouldn't have answered the phone, if I had known it was him, who is him? The grammar needs to be worked on and the last statement needs rewording and leave out ase

Sure! I'd be happy to help you with your sentences. Here are the corrections and explanations for each sentence:

1. When I arrived at the hotel, someone was cleaning my room.
- This sentence is correct. It describes an ongoing action in the past (someone cleaning the room) while another action (your arrival) took place.

2. If I had known that he was so rude, I would have never married him.
- This sentence is correct and uses the correct form of the third conditional. It describes a hypothetical situation in the past with a different outcome.

3. You would tell the truth if you were good friends.
- This sentence is correct and uses the correct form of the second conditional. It describes a hypothetical situation in the present or future with a possible outcome.

4. I wouldn't have answered the phone if I had known that it was him.
- This sentence is correct and uses the correct form of the third conditional. It describes a hypothetical situation in the past with a different outcome.

5. If you don't water the garden, the plants will die.
- This sentence is correct. It describes a general truth or a cause-and-effect relationship.

6. Look! The man who is crossing the road is my grandpa.
- This sentence is correct. It describes an action happening in real-time.

7. He had been driving for two days when he reached his destination at last.
- This sentence is correct. It describes an action that started in the past and continued until a specific time in the past.

8. I won't be able to go skiing with you because I will be very busy studying next week.
- This sentence is correct. It describes a future action based on a future condition.

9. You have been packing all morning, do you need any help?
- This sentence is correct. It describes an action that started in the past and is still ongoing at the time of speaking.

10. When I arrived last night, my mother had already come back and was giving dinner to the children.
- This sentence is correct. It combines the past perfect (had already come back) with the past continuous (was giving) to describe the sequence of past actions.

11. You shouldn't eat many fats which are bad for your health.
- This sentence needs a slight correction. It should be "which is bad for your health" instead of "which are bad for your health." This is because "fats" is considered a non-count noun, and we use singular verbs and pronouns with it.

I hope these explanations help! Let me know if you have any further questions.