The abstract noun "complaint" can be translated as the verb "complain." AT: "I would stop complaining" or "I would stop complaining against God" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])
Job's sad face is spoken of here as if it was something that could be removed. AT: "I would stop looking unhappy and smile" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Verses 28 and 29 express the consequences if Job does what he says in verse 27. This can be expressed by adding the word "then." AT: "Then I would be afraid of all my sorrows" (See: [[rc://en/ta/man/translate/writing-connectingwords]])
Job uses this question to emphasize that he does not think it is of any use trying to get God's attention. The implied information about what Job is trying can be made explicit. AT: "It is of no use to try to get God's attention." (See: [[rc://en/ta/man/translate/figs-rquestion]] and [[rc://en/ta/man/translate/figs-explicit]])