待ち時間
The waiting time is long.
待ち時間は長いです
The waiting time is twice as long.
待ち時間は二倍も長いです
The waiting time is twice as long as usual.
待ち時間は普段より二倍も長いです
The waiting time is twice as long as usual because so many people are here.
人が多いので待ち時間は普段より二倍も長いです
The waiting time is twice as long as usual because so many people are here to see the doctor.
診察を受けようとする人が多いので待ち時間は普段より二倍も長いです