is this sentence correct?

is 应该用 was 母语也会有过去式的吗?人家问你母语是什么,无论他过去问还是现在问也只能用is,怎么可能用was
另外,我认为just now在此谓语应该用过去式asked就够了,不需要用现在完成时have asked
i just now already asked you that what language your mother tounge is.