Although she is poor at Maths,she is not give it up.为什么要改成 Although she is poor at Maths,she never gives it up.

Although she is poor at Maths,she is not give it up.为什么要改成 Although she is poor at Maths,she never gives it up.
Although she is poor at Maths,she is not give it up.为什么要改成 Although she is poor at Maths,she never gives it up.

Although she is poor at Maths,she is not give it up.为什么要改成 Although she is poor at Maths,she never gives it up.
is是be动词,后面一般用动词的ing或ed形式,而当be动词加ing形式是进行时,加ed形式是表示被动,你想她正在放弃,动作进行中.有可能吗?!所以就不能is giving it up咯.