In this task, you will be shown a correct English sentence. You need to generate an incorrect form of the input sentence.

Robots can work all of the days , and no one is tired .
Robot can work all of the days , and no one is tired .

I think that young people were more politically engaged in previous times .
And I think that young people were more politically engaged in previous times .

The cost of using the underground is very cheap in some countries such as France .
The cost of undergroud is very cheap in some countries such as France .