This is hamza’s book.

هٰذَا الْكِتَابُ لِحَمْزَةَ

Hamid went to London.

حَامِدٌ ذَهَبَ إِلَى لَنْدَنَ

Usman’s pen is red.

قَلَمُ عُثْمَانَ أَحْمَرُ

Feminine names

آمِنَةُ،   زَيْنَبُ، مَريَمُ  etc. But names which are three letters and the middle letter got sukoon they can be partially flexible or flexible, but it is better to use flexible. example   رِيْمٌ، دَعْدٌ، هِنْدٌ

Masculine non-Arabic names

إِبْرَاهِيْمُ،  وِلْيَامُ،  بَاكِسْتَانُ  etc. But names which are three letters and the middle letter got sukoon they are flexible example   نُوْحٌ ،  لُوْطٌ 

Masculine Arabic names end with ة

حَمْزَةُ،   أُسَامَةُ،  طَلحَةُ  etc.

Masculine Arabic names with the pattern of فُعَلُ

هُبَلُ،   زُحَلُ،   زُفَرُ،   عُمَرُ etc.

Names with اَنُ at the end

عُثْمَانُ، شَعْباَنُ، مَرْوَانُ، رَمْضَانُ  But if it is of فَعَّالٌ pattern then it will not be partially flexible. example  حَسَّانٌ

Adjective of  فَعْلاَنُ pattern.

مَلْآنُ، عَطْشَانُ، شَبْعَانُ، جَوْعَانُ

Patterns like verb

example, أَحْمَدُ،  أَجْمَلُ  which are like أَذْهَبُ or يَزِيْدُ which are like  يَبِيْعُ 

Adjective of أَفْعَلُ pattern which cannot be feminine with adding  ة

أَحْمَرُ  ( حَمْرَاءُ ) ،  أَكْبَرُ ( كُبْرَى ) but  أَرْمَلٌ is not partially flexible because it’s feminine form is  أَرْمَلَةٌ

Plural of مَفَاعِلُ  ,  مَفَاعِيْلُ أَفْعِلَاءُ ,  فُعَلَاءُ etc. pattern

حَدَاءِقُ،  مَدَارِسُ،  مَسَاجِدُ،  مَنَادِيْلُ،  فَنَادِقُ،  اَنَامِلُ،  سَلاَسِلُ 

أَلِفُ التَّانِيْثِ at the end or feminine alif.

a) Alif maksura مَرْضٰى،  دُنْيَا،  حُبْلَى،  هَدَيَا،  فَتَاوَى 

But if alif is the third letter of the word those are not partially flexible example

فَتًى عَصًا، رَحًى،

b)  Alif mamduda ، أَغْنِيَاءُ،   حَمْرَاءُ،  صَحْرَاءُ،  فُقَرَاءُ،  أَصْدِقَاءُ but if it is of  أَفْعَالٌ   pattern then it will not be partially flexible. example, 

أَنْحَاءٌ، أَلْاَءٌ،  أَبْنَاءٌ،  أَسْمَاءٌ

الْ Partially flexible words with

Who is the boy wearing red dress?

مَنْ ذٰلِكَ الْوَلَدُ ذُوْ الْقَمِيْصِ الْاَحْمَرِ

Hamid fed the hungry boy.

حَامِدٌ أَطْعَمَ الْوَلَدَ الْجَوْعَانَ

He lives in the biggest house.

هُوَ فِي الْبَيْتِ الْأَكْبَرِ

   مُضَافٌ  Partially flexible words as

I taught at the school of medina.

دَرَّسْتُ فِي مَدَارِسِ الْمَدِيْنَةِ

He is among one of the best students.

هُوَ مِنْ أَحْسَنِ الطُّلاَّبِ

I created men in best form.

لَقَدْ خَلَقْنَا الْإِنْسَانَ فِي أَحْسَنِ تَقْوِيمٍ