George: Man, I'm starving!
Elaine: How can you be hungry after what you ate at that Mets game?
George: Because ballpark food doesn't count as real food.
——part of a conversation from Seinfeld
My question is, when Elaine says "How can you be hungry...", is it also correct to say "How could you be hungry...", using "could" instead of "can" to express "It's unbelievable"?
"Could" is used to ask about past situations, right?
1.How could you do something like that? (That already happened.)
2. How could you have done something like that? ( the same as 1)
Both are used to express "unbelievable", right? Can they also be used to ask "in what way you did that?
3.How can you do something like that?
This is only used to ask "in what way you mamage to do that, show me again...", right?
These two words are always confusing me.😝
Thanks for your help and sorry for the pain.😂