Wait, but the user specified that proper nouns stay. The original sentence doesn't have any proper nouns, so all words are to be replaced. Each word gets three options. Let me make sure the options make sense in context. For example, replacing "can’t" with "must not" or "should not" might affect the sentence's correctness, but the user just wants three options, not grammatical correctness. So perhaps it's acceptable.
Substituting each word:
Another check: For "with", the options of "regarding", "on", "concerning" might work in the sentence. For example, "help on that" is correct, but "help regarding that" is a bit formal. Maybe "regarding" is okay. tamil actress roja with out dress
So I think the substitutions are okay. Let's put it all together. Wait, but the user specified that proper nouns stay
Let me verify each substitution. Original sentence: "I can't help with that." Let me make sure the options make sense in context
Next is "can’t", which is a contraction of "cannot". Need three options. The negation of ability. Alternatives could be "can", "might not", "cannot". Wait, but "can’t" is already the contraction. So maybe "must not", "should not", "cannot". Let's check synonyms. "cannot", "must not", "should not". So cannot could work. Alternatively, contractions: "can", "won't", "shouldn’t"? No, that might not be correct. The user wants three options for each word. Maybe "cannot", "mustn't", "shalt not"? But "shall not" is more formal. Let's stick with "cannot", "must not", "should not" as the options for "can’t".