動詞の形
原形
begin
Past Simple
began
Past Participle
begun
例文
原形 · begin
Classes begin at nine o'clock sharp.
Past Simple · began
The concert began with a piano solo.
Past Participle · begun
The meeting had already begun when I arrived.
活用パターン
3つの形がすべて異なる — 最も練習が必要なグループです。