several mistakes
Esta frase contiene varios errores.
This sentence contains several errors.
Esta frase incluye varios errores.
This sentence contains several errors.
You've made several mistakes.
Este libro tiene varios errores, pero es interesante.
This book has several errors, but it’s interesting.
Estrictamente hablando, hubo varios errores en su discurso.
Strictly speaking, there were several errors in his speech.