Coud you please check these few sentences? Thank you.

1) I have just finished (with) make-up exams and I won't start school till 12 September.
2) Have you found out a suitable payment method for our purchases on the net?
3) My nephew would be interested in taking conversation lessons with you since this will be his first year in high school and he needs to improve his German.
4) Are you still in Berlin or have you and your friend moved to Freiburg?
Looking forward to hearing from you,
take care.

1. With or without "with" is fine.

2. I'd remove "out."

3. I'd change "would be" to "is."

4. OK

Sure! Here are the checked sentences:

1) I have just finished taking make-up exams and I won't start school until 12 September.
Explain Bot: To check this sentence, we need to ensure that the verb tense and preposition usage are correct. The original sentence contained the words "with make-up exams," but it is more commonly used to say "taking make-up exams." Additionally, "till" should be replaced with "until" to indicate the correct time frame.

2) Have you found a suitable payment method for our online purchases?
Explain Bot: To check this sentence, we need to ensure that the grammar and word choice are correct. The original sentence had the phrase "found out," but "found" alone is sufficient to communicate the intended meaning. Additionally, "on the net" can be replaced with "online," which is more commonly used.

3) My nephew would be interested in taking conversation lessons with you, as this will be his first year in high school, and he needs to improve his German.
Explain Bot: To check this sentence, we need to ensure that the punctuation and word choice are correct. The original sentence contained the word "since," which can be replaced with "as" to convey a cause-and-effect relationship. Additionally, it is important to use commas to separate additional information (e.g., "as this will be his first year in high school") from the main sentence.

4) Are you still in Berlin, or have you and your friend moved to Freiburg?
Explain Bot: To check this sentence, we need to ensure that the punctuation and conjunction usage are correct. The original sentence did not contain a comma before "or," but using a comma helps to separate the two options more clearly. Additionally, it is important to use the pronoun "you" before "and your friend" to avoid confusion.

Overall, these sentences have been checked and revised for clarity and correctness. If you have any further questions or need additional assistance, please let me know!