I find it difficult to know when to use "para" before an infinitive and when not to. Is there a rule for this that can help me?
Try replacing 'to' with 'in order to' in the English sentence, and if it works then you should use para. (they return in order to resolve the differences)
This is very useful. Thanks
No, most of the time it is just a matter of knowing the rule 'verb+preposition'
Can one use a instead of para in this instance?
You have different meanings:
Super helpful! Obg, amigo!
what is the difference between regressar and voltar?
Does voltam a resolver work ?
Why isn't it: Eles voltam para resolverem... infinitivo pessoal?
Isn't it the rule that after 'para' goes subjunctive or personal infinitive?