Inggeris

(follows 'は') of course, but not only _(fcbond)
in addition to _(sohminmin)
― of course I like dogs, but I like not only them but also cats; I bought the belt as well as the cufflinks

Japanese

(「は」に後続する形で)当然だが、それだけではない _(takkur)
― 私は、犬はもちろん猫も好きだ; 私は、カフスリンクはもちろん、ベルトも買った

_{takkur (2016-05-04 08:50:22)}

(TK 4 May, 2016) for representing "A as well as B", you say {A+"は"(postposition)+"もちろん/勿論"(+"のこと")+B+"も(or another postposition)"} in Japanese. "は" is obligatory.