我觉得这里只有needn't come是正确的,need是情态动词,needn't come意思是“不必来”
其余都是错误的
倒是有don't need doing的形式,但是被动意义,例如 The flowers don't need watering = The flowers don't need to be watered.这些花不必浇水.
need做情态动词一般用于否定句 needn't do
作为行为动词,need +名词 need to do