Two types of constructions are used to express addition. One is in the form of coordination with the conjunction "both...and...", see [Syntax - 3.1]. The other is an adverbial clause with the subordinating sign other.
ht-r ht-l
[meal cook ฤฑx1 cook other] garden ฤฑx1 work ฤฑxa[ipsi_up] ฤฑxb[contra_up]
โBesides cooking, I look after the garden.โ