Common IELTS grammar errors (Medium) Quiz Home › IELTS › IELTS English Grammar › Common IELTS grammar errors (Medium) 📝 IELTS – English Grammar – Common IELTS grammar errors – Medium 20 questions · 15 min timer · Explanations included · Free 1. Which sentence correctly uses the present perfect tense? I has seen that movie already. I seen that movie already. I have seen that movie already. I have saw that movie already. None Show Hint Option B is correct because 'have seen' is the correct present perfect form. Option A is incorrect because 'saw' is the simple past form. Option C is incorrect because 'seen' is missing the auxiliary 'have'. Option D is incorrect because 'has' is used with singular third person. 2. Which sentence correctly uses the passive voice? The cake is baking by my mother. My mother baked the cake. The cake bakes by my mother. The cake was baked by my mother. None Show Hint Option A is correct because it uses the passive voice, where the object 'cake' becomes the subject. Option B is in active voice. Option C is incorrect because 'is baking' suggests an ongoing action, not passive. Option D is incorrect because it doesn't use the correct passive structure. Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Click Submit to see your final score! Previous Start Quiz Next Time's up