| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [adv] | 4405 |
|
| 2 | [v-ing] [adv] after | 192 |
|
| 3 | [is] [v-ing] after | 101 |
|
| 4 | [is] [adv] after | 73 |
|
