posted by BK .
The essay I just got checked by my teacher has a lot of tense mistakes. She said I needed to make my tense either all present or all past. What's a good website that can help me check my tenses?
Here are many websites that can help you with verb tenses although I doubt there are any "magic sites" that will check them for you!
Also, without seeing some of those examples on your essay, we won't know exactly what caused you difficulty. Hopefully your teacher also explained the kind(s) of errors you have.