| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [v-ing] | 7370 |
|
| 2 | who is [adv] | 1423 |
|
| 3 | who is [v-ing] | 1214 |
|
| 4 | who [adv] [v-ing] | 5 |
|
