Fix Hindustani verb placeholders

This reflects [[Special:Diff/1845258828/1846218269]] [1] by
[[User:عُثمان]] [2]. (Only three placeholders need to be fixed because
the other two templates haven’t been transcribed yet.)

[1]: https://www.wikidata.org/wiki/Special:Diff/1845258828/1846218269
[2]: https://www.wikidata.org/wiki/User:%D8%B9%D9%8F%D8%AB%D9%85%D8%A7%D9%86