| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] for a | 7555 |
|
| 2 | [v-ing] [adv] a | 5868 |
|
| 3 | [v-ing] for a | 5191 |
|
| 4 | [v-ing] [adv] for | 3350 |
|
