as well as 是一個短語，它有以下幾種含義和用法：
補充含義：
相當於 in addition to 或 together with，表示除了某事物之外，還包含另一事物。例如："He sings as well as playing the piano." 意味著他不僅會唱歌，還會彈鋼琴。
強調用法：
當用作強調時，可以強調句子的某一部分。例如："Your wife as well as you is friendly to me." 強調了你的妻子也對我很友好，同時提到了你。
動詞形式：
當 as well as 位於句首時，後面通常接動名詞形式。例如："He enjoys swimming as well as playing tennis."。
如果主句謂語為複合時態（含有情態動詞或助動詞），則 as well as 後面的動詞通常與情態動詞或助動詞後的動詞形式保持一致。例如："I have to feed the animals as well as look after the children."。
其他用法：
有時，as well as 可以與 and 或 too 互換，表示「也」。例如："I like it as well." 或 "I like it too."。
在某些情況下，as well as 可以表示「像……一樣」。例如："He is as well as smart."。
綜上所述，as well as 是一個多功能的短語，具體用法取決於句子的結構和所要表達的意義。