The baby (crawl) on the floor.

• Subject-verb agreement এর নিয়মানুসারে,- The verb in a sentence should agree in number and person with the subject. - অর্থাৎ subject যদি singular হয় ও third person এ থাকে (like "The baby"), তাহলে verb ও singular form এ থাকবে, specifically, third person singular form এ।• যেহেতু 'The baby' third person singular form এ তাই verb ও singular form এ থাকবে (crawls). Complete sentence: The baby crawls on the floor.