Be careful with the construction in the above sentence.
‘Who’ has been used twice. You can only use ‘and who’ if it
follows a subordinate clause which has been introduced by
‘who’. In this sentence ‘who followed her’ is a subordinate
clause introduced by ‘who’ so the ‘and who’ that follows
later is correct. The following sentence is incorrect:
The man had followed her and who had frightened her
dog.
The ‘who’ is, of course, unnecessary. It should be:
The man had followed her and had frightened her dog.
Looking at more examples
Shaking with fear, she rushed to the door and tried to
open it while the doorbell rang persistently.
Main clause:... she rushed to the
door...
Main clause:... tried to open it...
Co-ordinating conjunction:... and...
Adverbial clause of time:... the doorbell rang
persistently
Participial phrase: Shaking with fear...
She had to get away but the door was locked and she
could not open it.
Main clause: She had to get away...
Main clause:... the door was locked...
Main clause:... she could not open it.
Co-ordinating conjunctions:... but... and...
VARYING YOUR SENTENCES / 59