Compound sentences often appear in a contracted or shortened form, so as to avoid the needless repetition of the same word.
(a) When there are two predicates to the same subject, there is no need to mention the subject more than once:
(1) The sun rose and (the sun) filled the sky with light.
(2) He called at my house but (he) left soon.
(3) He is poor, but (he is) honest. (Adversative).
(4) He is diligent, and therefore. (he is) prosperous. (Illative).
(b) When there are two subjects to the same predicate, we need not mention the predicate more than once:
(1) He and you are guilty. ( = He is guilty and you are guilty). (Cumulative)
(2) Either she did this or her parents (did this). (Alternative).
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Do you want to learn Group Verbs/Phrasal Verbs? Click to read all the posts on group verbs/phrasal verbs:
◼️Group Verbs/Phrasal Verbs: Part 1
