彼には、その仕事をきちんとこなす能力はない。の英語

He doesn't have the ability to do the work properly.

He doesn't have the ability to do the work properly.

He's incompetent to do the job.

I doubt his ability to do the job.

I doubt his ability to do the job.

No one else can fill that job.

He is not up to the task.

his competent but dull performance

He's not being fully stretched in this job.

Young as he is, he is not equal to the task.

He is very enthusiastic, but his hand does not go together with his enthusiasm.

This task is too much for him.

He is accurate in his work.

He is incompetent at his job.

He is far from suitable for that job.

His work leaves nothing to be desired.

I don't think he is fit for the job.

He will not be able to do the work.

To do him justice, he is not equal to the job.

He is not equal to the task.

He's inadequate for the job.

He's woefully inadequate for the job.

It is apparent to us that he hasn't done his work properly.

He shouldn't do work that much.

He hardly works.

He is not qualified for the job.

He is not equal to the important job.

He doesn't turn to that work.

He is the last man that is suited for the job.

In my opinion he is not fit for the work.