[译] 他正专心学英语。
[误] He is giving his mind to study English.

[正] He is giving his mind to studying English.
[注] give one’s mind to sth. 表示“专心于某事”，其中to是介词，不是动词不定式的标记，所以只能跟名词或动名词，不能跟动词不定式。