Adverbs without – LY

We are used to looking at adverbs as words ending in – LY. But there are some adverbs (without – LY looking alike adjectives. Here are some examples of such confusing adverbs:

1. I clean forgot the matter.
Here clean is not the word you are accustomed to using.. It means something different. It means COMPLETELY.
2. I’m dead certain I left my purse on the desk. 
 Here Dead means Completely. Please that DEADLY is an adjective which means fatal: a deadly virus
3. Does this train go direct to Edinburgh?
4. Take it easy.
5. We will play fair
6. The train runs fast
7. You can eat free in my restaurant.
Note that Freely is another adverb with different meaning of ‘without hesitation’. But in this sentence free means free of cost.
8. He can jump really high
Note that the adverb highly means ‘very much’:  we need a highly-skilled, highly-educated workforce.
9. He arrived right after breakfast.
10. School ahead, Please drive slow.