Tolong dijawab yah...

Giving advice : You should speak to him about it. He should consule a dentist for his bad tooth.

Asking for opinion : Do you think we should tell her about this case?

Giving opinion : I don't think we should cooperate with this organization. We should ask a lawyer. This is a legal matter. I think they should replace the director.

Saying something is not right : The price on this package is wrong. It says 65 cents, but it should be 50 cents.