Literal Meaning:
* "I haven't set foot in that restaurant since the last time I got food poisoning." (Meaning: I haven't been physically present in the restaurant.)
* "He was the first person to set foot on the moon." (Meaning: He was the first to physically walk on the moon.)
Figurative Meaning:
* "She vowed never to set foot in her ex-boyfriend's apartment again." (Meaning: She vowed never to go back to the apartment.)
* "You won't set foot in this house until you apologize!" (Meaning: You are forbidden from entering the house.)
* "No one knows what dangers lie ahead, but we will bravely set foot into the unknown." (Meaning: We will face the unknown challenges.)
Note: "Set foot" is always used in the past tense or present tense. You will not see it used in the future tense.