٣- قاعدة مِيْعَادٍ و مُوْسِرٍ و قُوْتِلَ

If:

• Waw sakin occurs after kasra 

Then

• Change to ي

Example:

مِوْعَادٌ

——>

مِيْعَادٌ

If

• Yaa sakin occurs after a dammah

Then

• Change to a waw

Example:

مُيْسِرٍ

——>

مُوْسِرٍ

If

• Alif occurs after a dammah

Then

• Change to a waw

Example:

قُاتِلَ

——>

قُوْتِلَ

If

• Alif occurs after a kasra

Then

• Change to a yaa

Example:

مَحَارِابُ

——>

مَحَارِيْبُ