1. demanding something forcefully, not accepting refusal or opposition
Usage: present participle of ‘insist’
2. stating or asserting positively and often repeatedly
Usage: present participle of ‘insist’

Examples

• She kept insisting that she was right about the answer.
• The teacher is insisting on complete silence during the test.
• He’s insisting that we leave immediately.
• My parents are insisting I clean my room before going out.
• The witness kept insisting he saw the suspect at the scene.
• Stop insisting on having your way all the time.
• The coach is insisting on daily practice sessions.