彼は今お母さんに電話している

彼: he, his, him, boyfriend
は: a, the, is, am, are, will
今: now, right now, this, today, current, moment, present, just now, immediately
お: the, oh, dear, honorable
母さん: mom, mother, my mother, mama
に: in, to, on, at, into, upon
電話: call, phone, tel, telephone, calls
し: and, shi, four, death
て: the, it, have
いる: are, to be, to stay, to have, necessary, to exist