This sentence sounds funny ‘how to say I can speak Punjabi in Punjabi’ but if you are not a native speaker of this language, you will be happy to find the exact phrase that can help you convey that you have learned Punjabi and can speak it.
There is no need to worry about the gender or singular plural. You just have to take care of the words that translate the sentence.
If you have any questions, suggestion or feedback regarding this, you can write to us through the comment section.