Asking for and showing preference

Inviting, accepting an invitation and declining an invitation

Offering, accepting and declining help

Asking someone to say something again

Seeking, granting and refusing permission

Expressing sympathy

Giving reasons

Encouraging and enquiring after someone

Asking if-Saying that one is obliged to do something

English For Social Purposes - Functions In English

English For All Purposes and Seasons

English For Specific Purposes and Fields

English For Academic Purposes - Within The Classroom

Communicative Grammar

English For Occupational Purposes

English For Creative Purposes

Letter

Usage

Idioms