Final answer:
Words modify their form based on case or number and gender, a process known as inflection. Pronouns adjust their case to match their role in a sentence, and contemporary English tends toward gender-neutral language to foster inclusivity.
Step-by-step explanation:
Words can change their form due to case or number and gender; this is called inflection.
Pronouns have three cases: subjective, objective, and possessive. Pronouns change case according to their function in a sentence. The subjective case is for subjects performing the action, the objective case is for objects receiving the action, and the possessive case shows ownership. Examples: 'I like pizza.' (subjective), 'Laura gave him the baseball.' (objective), 'The cat picked up its toy.' (possessive).
In response to the broader question of avoiding gender bias in language, contemporary English may use plural pronouns or gender-neutral language to include all genders. Instead of 'Every person should wash his or her hands,' one can say 'Every person should wash their hands.' This usage acknowledges individuals who do not fit traditional binary gender norms and contributes to a more inclusive language environment.