It is stupid of the child to make mistakes in his essays all the time.

这孩子真笨，写作文老出错。

New learners often make mistakes in grammar.

新学员常常犯语法错误。

She used to make mistakes in spelling when young .

他年轻时常常犯拼写错误。

I sometimes make mistakes in sentence structure when I write.

而且写作中也常常出现句型错误.

Very often I make mistakes in grammar when I speak English.

我老是在讲英语时犯语法错误。

Sylvester dallied about Lena until he began to make mistakes in his work.

直到在工作中开始出错,西尔威斯特和莉娜才不调情了.

None of us are perfect and we sometimes make mistakes in raising our children.

人无完人，我们有时在养育孩子上会犯错误。

Jack had never once made a mistake in his job in over thirty years. You couldn’t make mistakes in a job like Jack Robino’s.

过去的30年里杰克从没犯过错误像他这样的工作也不能出任何差错。

Thanks for no one word to say before you left. one night is too long to wait…a person can make mistakes in one's life, but could not make it always.

谢谢你连句话都没有在你离开的时候，一个晚上太长了等你的回答，一个人可以犯错误，但是不能总是犯错误！

The reason why English learners tend to make mistakes in the use of English tenses lies in the fact that the forms of the tenses do not always agree with the meanings implied in sentences.

英语时态形式与意义不一致的现象是广大英语学习者在英语应用中很容易产生错误的地方。