Why do you waste your money?
Why do you waste your money?
Explanation
The given sentence is in Present Indefinite Tense.
Why do you waste your money means تم اپنا پیسہ کیوں ضائع کرتے ہو؟
Waste is a verb here.
Wasted is the second and third form of Waste.
Present Indefinite Tense
Active Voice: Subject + Verb + Object
Passive Voice: Object + is/am/are+ third form of a verb + by + subject.