1. It was his fault that he didn't put a leash on his dog.

2. He should have walked his dog with a leash on.

3. He should have walked the dog with a leash on his collar.

4. It was his mistake that his didn't tie his dog to the collar. He should have used a dog lead.

5. By mistake, he didn't prepared a dog lead. A dog lead should be put on a dog outside.

6. He didn't keep an eye on the pet when they went for a walk. They were busy talking with each other.

(Would you check the sentences? Thank you.)

1. It was his fault that he didn't put a leash on his dog. OK

2. He should have walked his dog with a leash on. With a leash on what? His belt? The dog's collar? Or what?

3. He should have walked the dog with a leash on his collar. OK

4. It was his mistake that his didn't tie the lead to the dog's collar. He should have used a dog lead. I made changes.

5. By mistake, he didn't put the dog on a lead. A dog lead should be put on a dog outside. OK

6. He didn't keep an eye on the pet when they went for a walk. They were busy talking with each other. OK, mostly, but who are "They"?

In #4, "his" should be "he."

1. It was his fault that he didn't put a leash on his dog.

This sentence emphasizes that the responsibility lies with the person mentioned, as they failed to put a leash on their dog.

2. He should have walked his dog with a leash on.

This sentence suggests that the person mentioned should have used a leash while walking their dog, indicating that it is a safer and more responsible choice.

3. He should have walked the dog with a leash on his collar.

This sentence specifies that the person mentioned should have walked the dog with a leash attached to its collar, highlighting the importance of using a leash as a means of control during walks.

4. It was his mistake that he didn't tie his dog to the collar. He should have used a dog lead.

In this sentence, it is stated that the individual made a mistake by not attaching the dog to the collar using a dog lead, indicating that using a lead is the correct approach.

5. By mistake, he didn't prepare a dog lead. A dog lead should be put on a dog outside.

This sentence mentions that the person unintentionally did not bring a dog lead, emphasizing that using a dog lead is necessary when taking the dog outside.

6. He didn't keep an eye on the pet when they went for a walk. They were busy talking with each other.

This sentence conveys that the person did not watch their pet closely while on a walk, as they were preoccupied with conversation. It implies that keeping an eye on the pet is important during walks to ensure their safety.