形容词（词组）作何种状语，语法书一般均有比较详细的说明。例如：

1. Ripe,the oranges will sell at a good price.(时间）

2. Eager to see the sunrise,they got up at four.(原因）

3. Large or small,all countries are equal.(让步）

4. Breathless,she rushed in through the back door.(伴随）

5. Most important,all the delicate pieces of equipment are home-made.（句子状语）

6. Interested in the project,please call me as soon as possible.(条件）

7. Stony-faced,the policewoman asked the driver to show his driving licence.(方式）

8. She is real nice.(强调语（非正式用法））

9. He looks nice and healthy./He is good and angry./The grass is fine and tall./lt was lovely and cool in there.(nice/good/fine/lovely作强化语）

根据以上内容，如果视此句正确，再分析此句中形容词词组作何状语，也就方式状语靠点谱了。从语意上看，似乎应该属于必具性状语。

一般常见的是：never……but……和never……without…结构。例如：

lt never rains but it pours.=lt never rains without pouring.

所以，此句似乎也可这样表述：

Since the cure of depression, she has never spent another morning without being able to get out of bed.

仅谈谈理解。