Is it always necessary to repeat the pronoun before each verb?
For example, do I need always to say:
She called me and she said X
or can I use a shorter one
She called me and said X
Ellipsis1 is not normally possible after other conjunctions besides
She didn't know where she was when she woke up.
He was not hungry, but had to eat.
However, ellipsis of subject pronouns with forms of
be is possible in some cases:
Reference: M. Swan - "Practical English Usage"
1 Ellipsis is omission from a clause of one or more words that would otherwise be required by the remaining elements.