The aspect particle 了 (completed actions）

Question 1

What is the function of the aspect particle 了?

Answer 1

(a) to denote an action is accomplished (regardless of tense) so long as the action is NOT habitual

Question 2

Where is the aspect particle 了 located in the sentence?

Answer 2

(1) where the verb takes a complex object (objects with numerals or attributives), 了 follows the object, otherwise
(2) Immediately after the verb it modifies.

Question 3

How is the negative form of the aspect particle 了 formed?

Answer 3

没（有） is placed immediately before the verb. 了 is omitted.

Question 4

How is the affirmative negative form of the aspect particle 了 formed?

Answer 4

…verb + 了没有？