since she has been a teacher

[QiQi]

She has made much progress since she has been a teacher.
Would "since she has been a teacher " be ambiguous? Is she a teacher now?

She has given me a lot of help ever since she worked in our factory.
Is she in our factory now?


Many thanks!

[Pegasus]

1. "She has made much progress since she has been a teacher."

The above, two present perfect tenses in a clause, sounds awkward. It would be more natural to say:

"She has made much progress since she became a teacher"

or even

"She has made much progress since becoming a teacher"

2. "She has given me a lot of help ever since she worked in our factory"

Again sounds awkward rather put as:

"She has given me a lot of help ever since she began working in our factory"

It's also possible to replace the gerund "working" with the infinitive form "to work", both can follow the verb "begin".

[harvest]

well, I think the key to answer your Questions is what the meaning of since in your sentence. since as conjunction or time signal