Brazilian Portuguese Grammar

Pronoun o qual
Main features O qual, a qual, os quais, as quais agree in gender and number with the nouns that come before them; *They have the same meaning as que, and are also used for people, animal and things;* They are preferred after most prepositions, except after de, com, em, a and por (use que), unless you're talking about people (use quem); *When it is possible to use que* as well as o qual, a qual, os quais, as quais, prefer to use que; Use o qual, a qual, os quais, as quais to avoid ambiguity.**
O quadro pertence a meu avô, o qual se mudou para a Austrália. O quadro pertence a meu avô, que se mudou para a Austrália.	The picture belongs to my grandfather, who has moved over to Australia.	avô, o qual
A mesa de mármore pertence à mãe do meu melhor amigo, a qual está morando em Milão. *(the use of a qual* avoids ambiguity)**	The marble table belongs to my best friend's mother, who is living in Milan.	mãe, a qual
A lava-louças pertence a meus pais, os quais voltam para o Brasil em junho. A lava-louças pertence a meus pais, que voltam para o Brasil em junho.	The dishwasher belongs to my parents, who are coming back to Brazil in June.	pais, os quais
As fotos pertencem as minhas irmãs, as quais estão em Manaus agora. As fotos pertencem as minhas irmãs, que estão em Manaus agora.	The pictures belong to my sisters, who are in Manaus now.	irmãs, as quais