”确认”用英语怎么说？

确认:
affirm
countersign
notarize
validate
acknowledgement
affirmance

To admit of translation.
确认翻译
To justify or prove.
确认确认并证实
Make ready; make sure.
准备好；确认
A letter of confirmation
确认函或确认书
command acknowledgments and responses
命令确认和响应
Confirmation of the shipment.
装运确认书。
Identification of Ethnic Minorities
确认少数民族成分。
To locate or identify with precision.
精确地定位或确认
A recognition of their civil rights.
对他们人权的确认
To report the receipt of.
告知收到，确认收悉

confirm. ...

口语里可以说： make sure...

口语中常用affirmative，当然confirm也常用。

confirmed. 如果是领导对报告准确性的予以确认，回复confirmed

confirm 用的最多。