I wanna invite sb
I was wondering if I take you to the restaurant?
Would you like to go out to the restaurant with me?
Are the sentences above correct?is there other ways to invite somebody?

Question

Answer

I was wondering if you would like to join me for dinner/lunch at [name of restaurant].

This is a very casual and polite way to invite someone to a restaurant. The other two are fine, but sound a bit lifeless.

Inviting someone to a restaurant
Would you like to JOIN ME for dinner/lunch.....

Answer

one more way for the invitattion--if you are free i would love your company for the dinner/lunch/cofee etc.

Answer

The first sentence is very formal. To invite a close friend you may say:

Would you like to eat lunch/ dinner with me today/ tonight?
Would you like to come over for dinner or a tea ... tonight?
I would like to invite you to join me for dinner! ;)

Answer

you can also say- would you like to join me for the dinner/lunch?