The source presents three principal instrument-noun patterns:
Word / formMeaning / explanation
مِفْعَلٌas in مِضْرَبٌ, a striking implement.
مِفْعَلَةٌas in مِكْنَسَةٌ, a broom.
مِفْعَالٌas in مِفْتَاحٌ, a key.
Each begins with mīm carrying kasrah and a first radical with sukūn. The second has a final tāʾ marbūṭah, while the third has an alif after the second root letter.
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Ism al-Ālah: Definition, Three Patterns, Paradigms and Formation
The source presents three principal instrument-noun patterns:
Word / formMeaning / explanation
مِفْعَلٌas in مِضْرَبٌ, a striking implement.
مِفْعَلَةٌas in مِكْنَسَةٌ, a broom.
مِفْعَالٌas in مِفْتَاحٌ, a key.
Each begins with mīm carrying kasrah and a first radical with sukūn. The second has a final tāʾ marbūṭah, while the third has an alif after the second root letter.