Verbal Nouns of Forms II-X

Each derived verb form has one fixed pattern for its verbal noun (maṣdar), the word for the action itself, like English '-ing' or '-tion'. Start from the present tense, drop the prefix and fit the pattern:

• II يعلّم → تعليم (teaching), III يساعد → مساعدة (help), IV يُرسل → إرسال (sending, hamza under the alif)
• V يتعلّم → تعلّم (learning), VI يتعاون → تعاون (cooperation): just drop the ي
• VII ينطلق → انطلاق, VIII يجتمع → اجتماع, X يستعمل → استعمال: start with ا and put a long ā before the last root letter

يستمع is Form VIII (root س-م-ع), so it gives استماع. A maṣdar followed by its object stays bare (استعمال الهاتف); on its own as a subject it takes ال (التعاون مهم).