Conversation in Pigg life 2 Would you like tell me about those phrases, can I use it?

Conversation in Pigg life 2. Would you like tell me about these phrases? Can I use them?

I think saying "Would you like to tell me about these phrases?" sounds unnatural because it's quite submissive. When making a request, people are likely to be polite but the language in this sentence gives the listener too many ways to back out of the request. It's more common to just say "Please could you tell me about these phrases?" as it's more direct, but still polite.

My Japanese friends and I thought a of some phrases to use as about useful expressions in Pigg-life (Japanese game site).

or "My Japanese friends and I though of some phrases that could be useful expressions to use in Pigg-Life"

Please teach me you feel good at natural phrase.

I'm not sure what you mean by this phrase. Maybe "Please let me know if you think any of the phrases sound natural."?

And I’m glad to teach your suggestion phrase, if you want.

Not sure what you mean here either, sorry! If you mean that you are glad to learn and teach any suggestion phrases we have to your friends then you could say "And I'll be glad to teach any of your suggestion phrases to my friends."

Can you finish today's daily Quest?

Instead of asking if they have finished the daily quest for that day, this is instead asking if they are able to finish it. If you wanted to ask if they were able to get the quest for that day, you would say "Can you get today's daily quest yet?"

Have you finished today’s daily Quest?

If you are able to get a quest everyday you can refer to the quest as the "daily quest", so "daily" could be added to this sentence to refer to the quest, but it isn't required if there aren't any other quests available.

No, I haven’t done it yet.

No, I haven’t.

You could also say "No, not yet." or simply "Not yet."

Please have a something to meal. / (Please grab a bite.)

"grab a bite" is a casual expression, and I don't think it would usually be used with "please" to make a request to someone.

Would you like to grab a bite?

It's more common to hear "grab a bite" in a sentence like this, or when saying what your plans are. Example: "I'm going to grab a bite, then I'll be right over."

Can I help (you) with anything?

"you" is optional here.

Which of your crops can I help you with?

Which of your crops do you want me to help you with?

Which of your crops shall I tend to?

"tend to" would be better in this sentence.