Mama sat .
She sat by the window.
She wore black

1. As mama wore black she sat by the window.
2. Mama sat by the window while wearing black.
3. Mama was wearing black and sitting by the window.

1. Mama was wearing a beautiful black dress while watching the rain.
2. As mama was looking outside at the bright sun watching kids play she wore a black baithing suit.
3. Mama was looking out the window at the work she'd just done in her garden,while sipping limonade and weaing her black overals.