I can't find my wallet. I think I .......... (to lose) it.
- have lost
- has lost
- lost
- was losing
📝 Batafsil tushuntirish
We use Present Perfect when a past action has a result in the present.The result now: the wallet is missing.
Structure:
have/has + past participle
Subject I → have lost.
Correct sentence: I think I have lost it.