Correct

不了

/ bùle / 
Strokes

Definition

no thanks (used to politely but informally decline)

Example

As a Verb

［after a verb plus个］be without (an) end; be on end

1
Zhěngtiān
整天
máng
忙
gè
个
bù
不
le
了

be busy all day long

2
Kū
哭
gè
个
bù
不
le
了

keep crying