Question

He wouldn't solve the problem even if (he were) to take char

Answer 1

1.此句采用了if条件状语从句的虚拟语气语法.

即如果是对将来动作的虚拟,则主句用“would (not) + 动词原形”做谓语,而if（even if同此一样）从句则采用“were to do sth”结构.

2.当然,此时从句还可以采用另外两种构成,即从句使用一般过去时或从句谓语由“should do sth”构成.

所以,此题的he were to take charge还可以改写成：he took charge或he should take charge.