Aslam is believed ________________ this window.

Aslam is believed ________________ this window.

Explanation

Aslam is believed to have broken this window means مانا جاتا ہیکہ یہ کھڑکی اسلم توڑ چکا ہے

This is a sentence of Passive Voice.

Break an irregular verb here.

Broke is the second and broken is the third form of Break.