How can we omit the "subject"subject and/or "helping verb"helping verb after "as well as" with the present perfect continuous tense? Example Example:
- I have completed this project as well as been working on another one.
or
- I have completed this project as well as have been working on another one.
- I have completed this project as well as been working on another one.
- I have completed this project as well as have been working on another one.