Japanese phrase
その___は参加できません。 so no ___ wa san ka de ki ma se n
Meaning
That ___ cannot participate.
When to use it
Says that a certain person is unable to join. The polite form fits everyday conversation and leaves the reason unstated.
Example dialogue
あの学生も参加しますか？ a no gaku sei mo san ka shi ma su ka
Will that student be participating too?
すみません、その学生は参加できません。 su mi ma se n so no gaku sei wa san ka de ki ma se n
I am sorry, that student cannot participate.