since preposition

since since 10 o'clockSundayJaunary2002ChristmasI woke up1st January For 1 แปลว่าสำหรับ เช่น for me 2 ใช้กับ present perfect บอกช่วงเวลา เช่น She has worked

since I haven't seen him since yesterday I haven't eaten since breakfast Since the party, she has not spoken to him at all The company has been in its since For and since are often used with the present perfect tense, and they both answer the question how long?, however, they are not interchangeable