レオは２歳のときに吠え始めた。
Sentence Analyzer
English Translation
Leo started to roar when he was two years old.
Furigana
レオは２歳 のときに吠 え始 めた。
Romanji
Reo wa ni sai no tokini hoehajimeta.
Words
は
(は)
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
二
(に、ふた、ふ、ふう)
two
歳
(さい)
-years-old; ability; gift; talent; aptitude; genius
の
(の)
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
時に
(ときに)
by the way; incidentally; sometimes; occasionally
吠える
(ほえる)
to bark; to bay; to howl; to bellow; to roar; to cry