如何区分进行时 动名词和形容词

如何区分进行时 动名词和形容词
比如这三句话（1）In fact,they areentertaining for both children and adults.
（2）Jenny was walking to the store with her sister.
（3）The children really like making presents for their parents.
请问怎么区分?求讲解

比如这三句话（1）In fact,they are entertaining for both children and adults.
这是一个现在进行时态的句子,“be+动词ing”形式构成进行时态,be为现在式时构成现在进行时态；
（2）Jenny was walking to the store with her sister.
这是一个过去进行时态的桔子,“be+动词ing”形式构成进行时态,be为过去式时就构成过去进行时态；
（3）The children really like making presents for their parents.
这是一个一般现在时态的句子,making presents for their parents作为动名词短语,在句子中作like的宾语.