Answer: An example of committing Kufr by words is blaspheming Allah Almighty or His Messenger (may Allah’s peace and blessings be upon him).

An example of committing Kufr by deeds is degrading the Mus-haf (a bound copy of the Qur’an), or prostrating to other than Allah Almighty.

An example of committing Kufr by belief is believing that there is someone who is worthy of worship other than Allah Almighty, or that there is a creator besides Allah.