A few ways to say “I can’t”:
Angry and frustrated “I can’t!”: shouted at someone making another unreasonable request.
Or with regret: they couldn’t help even if they wanted to.
“I can’t, I-” between rapid breaths they can’t control, shaking, unable to calm down.
“I can’t”: Tired and worn out - they have nothing left to give.
Alternatively, spoken like a quiet surrender, finally admitting defeat.
Desperate and pleading; they honestly can’t and fear the consequences.
“I can’t” Choked up and breaking down because everything is too much.
I’m going to print this one out and frame it.