I would like to ask about the following words: 父親【ちちおや】 and 母親【ははおや】. They refer to father and mother, right? But why do they exist? When do we use them instead of お父【とう】さん and お母【かあ】さん? I have a ...
To my knowledge there are three words which can be used in thanking and they seem to be usable together in some combinations: どうも (domo) どうもありがとう (domo arigato) ありがとう (arigato) ありがとうございます (arigato ...