while后的句子谓语动词并不一定是ing形式，具体需要根据上下文和时态来定，while后的句子时态可以是一般现在时，也可以是过去时态、进行时态等。while的具体用法如下：
1、“当……时候”， 引导时间状语从句(从句动作必须是延续性的)。
Please don't talk so loud while others are working. While I was cleaning the window，my finger was seriously cut.
2、“虽然，尽管”相当于although，引导让步状语从句(常把while放在句首)。
While she is a top student， she has some shortcomings. While the Internet is bridging the distance between people， it may also be breaking some home or will cause other family problems.
3、“只要，如果”等于as long as，引导条件状语从句。
There is hope while there is life. While you study hard， your effort will pay off.
扩展资料：
1、 He was lost in the con-templation of the landscape for a while.
有一会儿，他怔怔地注视着周围的景物。
2、He rented out his house while he worked abroad.
他在国外工作期间把自己的房子租了出去。
3、 An airliner came close to disaster while approaching Heathrow Airport.
一架大型客机在飞近希思罗机场时差点儿发生空难。
4、While this conver-sation was going on, I was listening with earnest attention.
这场对话进行的时候，我聚精会神地听着。
5、He was caught out while lapping a slower rider.
他在套圈超越一位落后的车手时出了错。
6、Barry held the bowls while Liz ladled soup into them.
巴里负责端着碗，由利兹向碗里盛汤。
7、Sailors hung about while they waited to ship out.
水手们在等待离港的时候四处闲逛。
8、We sat in Lily's sunroom while I sketched in the situation.
我们坐在莉莉的日光浴室里，我把目前形势的细节情况又补充说明了一下。