Here are examples of the word/phrase "customarily" used in a sentence and paraphrased in a sentence...
These types of songs are customarily composed with 3 verses, a chorus and an instrumental.
These types of songs are conventionally composed with 3 verses, a chorus and an instrumental.
I can customarily make my characters stronger than the boss by training and leveling up.
I can conventionally make my characters stronger than the boss by training and leveling up.
Other Examples...