Complex sentence: Sociolinguist Anthea Fraser Gupta also argues that Singlish and standard English can and do co-exist, saying that "there is no evidence that the presence of Singlish causes damage to standard English".
Split into simpler sentences: Sociolinguist Anthea Fraser Gupta argues that Singlish and standard English can and do co-exist. According to Gupta, "there is no evidence that the presence of Singlish causes damage to standard English".