How to use (a, an, and the) 1. We use (a) for ganeral thing which is not specifict noun. Eample: I am a teacher at my school. 2. We use (a) before singular noun and before the consonant sounds. Example: It is a book. 3. We use an before vowel sounds. Eample: It is an apple. It is an elephant. it is an armchair. 4. We use the for the specifict thing. Example: It is a red book. The red book is yours. 5. We use the for only one thing in the world. Example: the sun. the moon the sea 6. We use the befor supperlative adjective. easy easier the easiest bigg bigger the biggest 7. We sue the with part of the day. Example: in the morning in the afternoon in the evening