Hiragana/Romanji to English?

Some guy signed my friends yearbook in Japanese. We realised it was written in the Hiragana alphabet and we managed to decypher most of it into romanji. So if you know Japanese please help us translate this to english " Ni hon n go ho na shi ma yo shi e ra ji (blank) be" or "nihongo ho nashimayo shiera ji__be)" Thank you in advance!