1
struggle to do sth
struggle to do sth 表示做某事很吃力或须付出巨大努力。
She struggled to finish the marathon.
她艰难地跑完了马拉松。
奋斗；努力；抗争；挣扎
先理解核心含义，再看它在真实句子里的用法。
奋斗；努力；抗争；挣扎
To strive, to labour in difficulty, to fight (for or against), to contend.
She struggled to finish the marathon.
她艰难地跑完了马拉松。
奋斗,在困难中努力,为(或反对)而斗争,争夺。
To strive, to labour in difficulty, to fight (for or against), to contend.
在某事上遇到困难。
To have difficulty with something.
努力挣扎,或使身体扭曲地使劲。
To strive, or to make efforts, with a twisting, or with contortions of the body.
struggle
Base
原形
struggles
3rd person
第三人称单数
struggling
-ing
现在分词
struggled
Past
过去式
struggled
Past participle
过去分词
She struggles to understand the instructions.
她努力理解说明。
He struggled with the heavy box.
他艰难地搬动重箱子。
They are struggling to finish on time.
他们正在努力按时完成。
I struggle with math, so I spend extra time on homework every night.
我数学学得很吃力，所以每晚都额外花时间做作业。
She struggled to open the heavy door, but finally managed to push it open.
她费了好大劲才打开那扇沉重的门，最后终于把它推开了。
He is struggling to finish his essay before the deadline.
他正在吃力地赶在截止日期前完成论文。
struggle to do sth 表示做某事很吃力或须付出巨大努力。
She struggled to finish the marathon.
她艰难地跑完了马拉松。
struggle with sth 表示在某方面遇到困难，后接名词或代词。
Many students struggle with math.
许多学生在数学上感到吃力。
struggle for sth 表示为目标或理想而奋斗。
They struggled for independence.
他们为独立而斗争。
struggle against sth 表示与阻力、困难等抗争。
He struggled against the strong wind.
他奋力抵抗强风。
Not this
I struggle my English homework.
Use this
I struggle with my English homework.
表示“在某事上遇到困难”时，struggle是不及物动词，不能直接接宾语，须用介词with引出困难的对象；中文“我在英语作业上很挣扎”不能直译成struggle something。
Not this
I struggle for improve my English.
Use this
I struggle to improve my English.
表示“努力做某事”时，struggle后接不定式to do，不能按中文“为了”用for加动词原形；for后面只能接名词或动名词，不能接动词原形。
Not this
I am struggle with this problem.
Use this
I am struggling with this problem.
描述当前正在进行的吃力状态时，be动词后须用现在分词struggling构成现在进行时，不能用动词原形；中文“我很挣扎”对应的是I am struggling，而不是I am struggle。