"don't"与"doesn't"怎样使用?大侠们救救我!那么第三人称复数时,就是用“don't”?（比如：Helen's parents ______ like swimming.A、don't B、doesn't应该选A还是B?）

"don't"与"doesn't"怎样使用?大侠们救救我!那么第三人称复数时,就是用“don't”?（比如：Helen's parents ______ like swimming.A、don't B、doesn't应该选A还是B?）
"don't"与"doesn't"怎样使用?
大侠们救救我!
那么第三人称复数时,就是用“don't”?（比如：Helen's parents ______ like swimming.A、don't B、doesn't应该选A还是B?）

"don't"与"doesn't"怎样使用?大侠们救救我!那么第三人称复数时,就是用“don't”?（比如：Helen's parents ______ like swimming.A、don't B、doesn't应该选A还是B?）
谓语动词不是系动词时
don't是第一人称或第二人称否定式使用
doesn't是第三人称否定式使用