This is the 1058th most frequent Portuguese word.
acho
"I think" or "I believe."
In this sentence, 'acho' expresses a tentative possibility or offer of help.
Se você precisar, acho que posso ajudar.
If you need, I think I can help.
Here, 'acho' negates an opinion in a respectful manner, showing disagreement with the previous talks or thoughts.
Não acho que seja uma boa ideia.
I don't think that's a good idea.
Here, 'acho' is used to indicate an opinion or belief about a certain situation.