Indefinite Articles
by Vita Skavysh
1. AN
1.1. Classifying function
1.2. Predicative function
1.3. General Sence
1.4. Idea of singularity
2. A
2.1. Identifying function
2.1.1. Pointing out a particular object
2.1.2. The speaker knows the object
2.1.3. The situation makes object definite