Do you like my costume? It's a fool because it's opposite of me.
I really want to kill this man.
This is an example of verbal irony because every time Montresor talked to Fortunato, he treated him as a good friend when he meant the opposite. He did not view Fortunato as a friend and wanted to kill him.
Are you a mason?
This is an example of situational irony because Fortunato believed a fool was the opposite description of him but then Montresor proves Fortunato is a fool because he was able to trap him in the catacombs.
I will not die of a cough!
This is an example of dramatic irony because the audience is aware that Montresor wants to kill Fortunato but no one in the story is aware that Montresor does not like Fortunato. Montresor acts as if he is good friends with Fortunato but he really just wants to gain his trust before taking him into the catacombs to kill him.
Nobody attacks me without impunity!
This is an example of foreshadowing because the trowel is foreshadowing how Fortunato may die with Montresor using the trowel.
Yes, I am a mason and we use trowels for stonework.
This is also an example of foreshadowing because Fortunato believes he will not die from a cough. This foreshadows the end of the story when Fortunato ends up getting killed by Montresor.
This is an example of foreshadowing because the family motto is referring to the end of the story and how Fortunato will not get away without a punishment which is death.