"not only"後面可以接不同的語法成分，具體取決於句子的結構和所要表達的意思。以下是一些常見的用法：
接主語：當"not only"後面接主語時，謂語動詞要與與其最近的主語保持人稱和數的一致。例如："Not only I but also Tom and Mary are fond of watching television."
接謂語動詞：在接謂語動詞時，"not only"後面應使用動詞原形，並且時態要與前面的動詞保持一致。例如："She not only wrote the text but also selected the illustrations."
接賓語或賓語補足語："not only"後面可以接賓語或賓語補足語，用於描述動作的對象或對賓語的描述。例如："The problem for the recipient was trying to guess not only who the sender was, but also what his secret feelings might be."
接表語："not only"後面也可以接表語，用於描述主語的狀態或特徵。例如："She was not only intelligent but also very musical."
接句子：當"not only"後接句子時，如果"not only"位於句首表示強調，後面要用倒裝結構。例如："Not only are mothers not paid but also most of their boring or difficult work is unnoticed."
其他用法："not only"後面還可以接形容詞、副詞、名詞等，具體用法可以根據句子的需要來決定。例如："He is not only arrogant but also selfish."
綜上所述，"not only"後面可以接主語、謂語動詞、賓語、表語、句子以及形容詞、副詞、名詞等，具體用法需要根據句子的結構和所要表達的意思來決定。