V. Aspect particle le了 and
modal particle le了used
together without a quantified
object or duration between them indicates that
the action has been completed. Such
a usage is the same in meaning and function as one that takes only the
modal particle le了at the
end of the sentence.
Wǒ kàn-le shū le.
= Wǒ kàn shū le. (Kàn is stressed.)
我看了书了。 = 我看书了。
I’ve read the book.