327. Wrong repetition of subject in a compound sentence
(X) I went to the market and I bought fruit.
(O) I went to the market and bought fruit.
In a compound sentence, express the same subject once only and don't repeat
it before each verb, unless the sentence is long and complicated
328. Wrong repetition of subject after an adjectival clause
(X) David, who is a careless pupil, he lost his book,
(O) David, who is a careless pupil, lost his book.
329. Wrong repetition of subject after a non-finite verb phrase
(X) Karen and Tom, having signed the register, they left the church.
(O) Karen and Tom, having signed the register, left the church.