Formal:
* ਮੈਨੂੰ ਹਿੰਦੀ ਭਾਸ਼ਾ ਬਹੁਤ ਪਿਆਰੀ ਹੈ। (Mainnu Hindi bhasha bahut pyari hai.) - This is a literal translation and a very formal way to say it.
* ਮੈਨੂੰ ਹਿੰਦੀ ਭਾਸ਼ਾ ਪਸੰਦ ਹੈ। (Mainnu Hindi bhasha pasand hai.) - This is a slightly less formal way to say it, meaning "I like the Hindi language."
Informal:
* ਮੈਨੂੰ ਹਿੰਦੀ ਬਹੁਤ ਪਿਆਰੀ ਹੈ। (Mainnu Hindi bahut pyari hai.) - This is a more informal way to say it, leaving out "bhasha" (language).
* ਮੈਨੂੰ ਹਿੰਦੀ ਵਾਲੀ ਗੱਲ ਕਰਨੀ ਬਹੁਤ ਪਸੰਦ ਹੈ। (Mainnu Hindi wali gall karni bahut pasand hai.) - This translates to "I like to speak Hindi."
* ਮੈਨੂੰ ਹਿੰਦੀ ਬੋਲਣਾ ਬਹੁਤ ਪਸੰਦ ਹੈ। (Mainnu Hindi bolna bahut pasand hai.) - This translates to "I like to speak Hindi."
You can also add words like "ਬਹੁਤ" (bahut - very) or "ਬੇਹੱਦ" (behad - extremely) to emphasize your love for the language.
Remember that these are just a few examples, and the best way to say it depends on the context and your own personal style.