“为别人着想”是think for 还是think of

think for
认为, 预料
think of
v.
考虑, 关心, 想起, 想象, 有...的看法, 记起
所以用think of

think of

think of
think for 是指想要什么东西

think of
附：它们各自的解释
think for [简明英汉词典]
认为, 预料
think of [简明英汉词典]
v.考虑, 关心, 想起, 想象, 有...的看法, 记起

希望你能满意

think for
considerate 可以做形容词。