不可欠だ

is essential

phrase Uncommon #12,627
is essential Used to say that something is indispensable or absolutely necessary.
JA: 健康を保つには、十分な睡眠が不可欠だ。
EN: Getting enough sleep is essential for maintaining good health.

教師にとって忍耐力は不可欠だ。

Patience is essential for teachers.

生きていくのにはどうしても眠ることが不可欠だ。

Sleep is absolutely essential for staying alive.

私達が成功するには君の助力が不可欠だ。

Your help is essential for us to succeed.