それはLinking Verbだ。一例がremain。remainをOxford Dictionaryを引くと次のように書かれている。
remain
(1) linking verb
remain + adj.
to be still in the same state or condition
→同じ状態のままじっとしている
- to remain silent
- to remain standing/seated/motionless
- to remain calm/confident
文型はS+V+C
remain + noun
to continue to be something
→〜のままでいる
In spite of their quarrel, they remain the best of friends.
文型はS+V+C
さらに続く・・・・
(2) intransitive
to still be present after the other parts have been removed, used, etc.; to continue to exist
→残る
- Very little of the house remained after the fire.
文型はS＋V
(3)intransitive
remain + adv./prep.
to stay in the same place
to not leave
→ずっと同じ場所にいる
- She left, but I remained behind.
- The plane remained on the ground.
文型はS＋V
(4) intransitive
to still need to be done, said or dealt with
→課題や疑問が残る
- Questions remain about the president's honesty.
文型はS＋V