"invitation"

- invitation is the way to invite someone to join something.
- example is the we want to invite someone we could say like this.

. i would like to
. shall we ?
. how about ?

- example ,if we want to except an invitation we could say .
. all right .
. ok .
.yes ,i'll join to.

- to : refuse an invitation .
. i would love to ,but
. it's good ,but .