Some examples of word usage: subsidiary verb
1. She is singing. (subsidiary verb: is)
彼女は歌っています。
2. They have finished their homework. (subsidiary verb: have)
彼らは宿題を終えました。
3. He will be arriving soon. (subsidiary verb: will be)
彼はすぐに到着します。
4. I had already eaten when you called. (subsidiary verb: had)
あなたが電話をかけたときに、私はすでに食べていました。
5. We were playing soccer when it started raining. (subsidiary verb: were)
雨が降り始めたとき、私たちはサッカーをしていました。
6. She can speak three languages fluently. (subsidiary verb: can)
彼女は3つの言語を流暢に話すことができます。