無断で欠席すべきではない。の英語

You should not be absent without notice.

Unavoidable circumstances obliged me to absent myself.

to absent oneself without notice―play truant

in excuse of one's absence

Unavoidable circumstances oblige me to absent myself.

I am sorry for being absent from that.

ask for leave of absence

You may leave your seat at will.

The reason for her absence is not clear.

His being absent complicates matters.

Never stay away from school without good cause.

to absent oneself without due notice―play truant

Unavoidable circumstances oblige me to absent myself.

absence without notice―absence without leave

to absent oneself from a meeting―stay away from a meeting

action viewed in terms of participation (be absent from)

I can't account for his absence.

to absent oneself without due notice―absent oneself without leave―play truant

to play truant

to absent oneself without due notice―play truant

absence without due notice―absence without leave

a notice of absence

a report of non-attendance

I don't know the reason for her absence.

His absence put us to great inconvenience

We missed him very much.

the act of absenting oneself without notice

The status is nonattendance because we did not receive any reply.

Please inform me of your absence in advance.

Please reply only if you cannot attend.