a.

1. 很可能的[+to-v][+that]
   John is likely to be in London this autumn.

   今年秋天约翰可能在伦敦。

2. 适当的，正合要求的[（+for）]
   The park is a likely place for the picnic.

   这公园倒是个适合野餐的地方。

ad.

1. 很可能
   We will most likely be late.

   我们很有可能会迟到。

adj.

1. such as well might happen or be true.
2. promising.

adv.