Invitation

Invitation is something or sentences which we can use to invite someone or group to a party or a program.

There are two type of invitation :

1. Formal Invitaion
Formal invitaion is usuallu originate from institues companies and a kind of it,
normally formal invitation is written invitaion.
2. Informal invitation
Informal invitation is personal invitation 
given to a friend, famili, etc. 

If we want invite someone, we can use :

1.would you like...?

2.can you come to ...

3.could you go to my home?

4.shall we...?

5.I'd like to invite you..

6.how about..

7.i would you like...

Accept an invitation :

- o.k. !

-that's a good idea

-thank's for your invitation

-that would be very nice. thank you !

-All right

-Thank you, I'll come...

-Of course ! I'll come ...

-Yes, I'll join to..

To refuse / dealine an invitation :

- that's nice unfortunately

- Sorry,that wouldn't be possible,thank's

- Sorry,because i have program

- Sorry,it's good,but i can't present it

- I'm awfully,sorry

- I would love,but..

- It's good,but..

- Sorry I'm busy....