What is the tastiest food you have ever tried? -
How long has Nataly been calling you? -
We haven't been to Sweden yet. -
They have been studying philosophy for five years. -
Why have we been waiting for her for forty minutes? -
I have never had a pet. -
Mary has been to Canada twice. -
They have been waiting for us for thirty minutes. -
I have lost my phone and I can't call you. -
How many pages have you written today? -
Have they ever been to Scotland? -
I've been reading the book you gave me for two weeks. -
What countries has John ever been to? -
Have you been reading this paper for two hours? -
I have already cooked the dinner. -
Erica has not been listening to you all this time. -
My sister has not come back yet. -
Has your cousin graduated from the university yet? -
I haven't been playing hockey for a long time. -
Mary and Jane have been travelling since July. -