It is certainly not necessary to include the ‘I’ in each clause.
The first four main clauses are separated by commas and the
last one is preceded by ‘and’. In the following sentence the
subject of each of the clauses is different so the subject
obviously has to be included. Again, commas separate the
first four and the last one is preceded by ‘and’.
The wind howled round the house, the rain beat against
the windows, the lightning flashed, the thunder roared and
Sarah cowered under the table.In the following sentence, although three of the clauses have
the same subject ‘he’, the subject has to be included so the
sentence makes sense.
He was annoyed, his wife was late, he disliked the house,
he was very tired and the food was tasteless.Because ‘his wife was late’ is between ‘He was annoyed’ and
‘he disliked the house’, ‘he’ has to be repeated.
Checking your commas
The comma was introduced into English in the sixteenth
century and plays a very important part in punctuation.
However, it mustnotbe used instead of a full stop. If you
write a sentence with two main clauses separated by a
comma, it iswrong. Either put a full stop between them or
use a conjunction to link them.
My name is Bob, I live in London.VARYING YOUR SENTENCES / 55