There are 3 types of Tanween :
1). FATHATAIN 2). KASRATAIN 3). DHAMMATAIN
This lesson is about FATHATAIN
Fathatain symbol appears as two fatha symbols over a letter.
Fathatain sign consists of two components
(1) Fathah that produces 'A' sound
(2) Second Fathah is an unwritten letter Nun saakin, that produces 'N' sound.
Thus will produce 'AN' sound.
(More lessons soon InshaAllah)