Student or Learner
What are the possibilities of verb tenses can this verb in brackets be conjugated at ?
- I'm tired now, I (work) all day.
Yeah thanks. I know, but In my class, we haven't seen the past perfect continuous yet. so it's gonna be whether the past simple (/continuous) or the present perfect...
You could also use 'have worked', but 'have been working' is by far the best.
See English Grammar in Use, Raymond Murphy, Cambridge University Press. I don't need this reference to know that I am right, but maybe you do.