= (Both) Lilian and Betty were born in August.
= Lilian and Betty were (both) born in August.
= Not only Lilian but also Betty was born in August.
= Lilian as well as Betty was born in August.
= (Both) Lilian and Betty were born in August.
= Lilian and Betty were (both) born in August.
= Not only Lilian but also Betty was born in August.
= Lilian as well as Betty was born in August.