| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [v-ing] | 7370 |
|
| 2 | [adv] [v-ing] or | 264 |
|
| 3 | is [adv] or | 222 |
|
| 4 | is [v-ing] or | 95 |
|
