Cố gắng + Động từ (càng nhiều càng tốt)

You hope to arrive early, but the bus may be late

• A friend asks for an early arrival. You say 我会wǒ huìas much as possible尽量jǐnliàngbreakfast早点zǎo diǎncome来lái。 — “I will try to come as early as possible.” You express an effort within practical limits.
• Compare I / me我wǒdefinitely一定yí dìngeight八bāa bit点diǎnto / arrive到dào — “I will definitely arrive at eight.” as much as possible尽量jǐnliàng by itself does not guarantee the exact outcome.

Put the effort modifier before the action

• Use subject + as much as possible尽量jǐnliàng + action or limit: you你nǐas much as possible尽量jǐnliàngbreakfast早点zǎo diǎncome来lái / 我会wǒ huìas much as possible尽量jǐnliàngto help帮bāngyou你nǐ。 The speaker tries to do what is feasible.
• as much as possible尽量jǐnliàng can also limit an unwanted action: as much as possible尽量jǐnliàngdon't别biéat / in在zàievening晚上wǎn shàng喝咖啡hē kā fēi。 — “Try not to drink coffee at night.” It does not always mean doing more of an activity.

you你nǐas much as possible尽量jǐnliàngearly早zǎoa bit点diǎncome来lái。

Distinguish effort from a guarantee

• 我会wǒ huìas much as possible尽量jǐnliàngbreakfast早点zǎo diǎncome来lái reports an intention to try. If the bus is late, the outcome may still be late even when the speaker made a real effort.
• If a precise time is essential, state the deadline and discuss whether it is realistic. A hopeful modifier is not a substitute for the actual scheduling information.

Contrast as much as possible尽量jǐnliàng with permission-giving ask freely / despite, according to context尽管jǐn guǎn

• as much as possible尽量jǐnliàngbreakfast早点zǎo diǎncome来lái asks for an effort toward an earlier arrival. to have / there is有yǒuquestion问题wèn tíask freely / despite, according to context尽管jǐn guǎnto ask问wèn gives permission or encouragement to ask freely.
• The similar first character does not make the expressions synonyms. Decide whether the speaker asks for feasible effort or removes hesitation about an action.

Read what is being increased or reduced

• 上课时shàng kè shías much as possible尽量jǐnliàngto use / with用yòngChinese language汉语hàn yǔto exchange交流jiāo liú asks learners to use Chinese as much as feasible. as much as possible尽量jǐnliàngyoung少shǎoto use / with用yòngcell phone手机shǒu jī asks them to reduce phone use as far as feasible.
• Identify the whole modified phrase, including early早zǎo、young少shǎo or don't别bié. Translating only as much as possible尽量jǐnliàng as “more” can reverse the intended advice.

Make a realistic effort statement

• To offer help without guaranteeing success, say 我会wǒ huìas much as possible尽量jǐnliàngto help帮bāngyou你nǐ。 Give the listener any important limits separately.
• In a new example, identify the attempted action and whether its outcome is certain. as much as possible尽量jǐnliàng expresses feasible effort, not proof that the action succeeded.

Read the full reference: HSK 5 grammar — Adverbs.