Joining sentences < Commas < Punctuation < Orthography and grammar < Style Guide
When you join two complete sentences into a single sentence, you can use commas but follow them with a suitable connecting word: and
||The group members had to hand in their reports last week, but some were only submitted this week.
The comma is not required if the subject of the second part of the sentence is omitted or if the conjunction used is and
||The student had to hand in the work by Friday but didn’t make the deadline.
||The student had to hand in the work by Friday or the work would receive a failing mark.
Universitat de Barcelona. Serveis Lingüístics
Darrera actualització: 17-11-2021
» [en línia]. A: Llibre d’estil de la Universitat de Barcelona.
Barcelona: Universitat de Barcelona. Serveis Lingüístics. <http://www.ub.edu/cub/criteri.php?id=2315
> [consulta: 14 agost 2022].