| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [adv] | 9813 |
|
| 2 | [v-ing] [adv] or | 723 |
|
| 3 | [is] [adv] or | 343 |
|
| 4 | [is] [v-ing] or | 124 |
|
