Phua Chu Kang’s wife is Rosie, an ex-lounge hostess. He lives with his gossipy yet endearing mother Madam Ang and his brother Chu Beng, his wife Margarat and their son Aloysius. Constantly berating his choice of a wife, Chu Kang’s mother constantly compares him with his architect brother, Chu Beng. The brothers, however, get along well although they are very different in character and personality. Chu Kang saw Chu Beng through university with his construction business. Chu Beng designs while Chu Kang builds. Chu Beng's sophisticated wife, Margaret, on the other hand, finds Chu Kang and Rosie intolerably uncouth and tries not to associate herself and her family with them.
The sitcom came under fire in the debate about Singlish and Standard Singapore English in July 1999. Phua Chu Kang is seen as a sitcom that unabashedly employs and promotes the use of Singlish. The "broken" English used by Phua Chu Kang and his wife Rosie is contrasted to the proper standard spoken by Phua Chu Beng and his wife.
In his National Day Rally Message
1999, Prime Minister Goh Chok Tong urged Singaporeans not to mimic the
Singlish used by Phua Chu Kang, but to speak a global brand of English.
He had also suggested to TCS that the Phua Chu Kang character, played by
actor Gurmit Singh to go for English upgrading classes.
As a result of its popularity and the adverse effects it is having on
the way Singaporeans speak English, Television Corporation of Singapore
(TCS) has decided to tone down Phua Chu Kang’s use of Singlish. The next
season would see Phua Chu Kang returning from his English upgrading class
speaking proper Standard English.