| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [prep] [noun prp] | 509 |
|
| 2 | who is [v-ing] [prep] | 305 |
|
| 3 | who is [v-ing] [noun prp] | 31 |
|
| 4 | who is [prep] [noun prp] | 21 |
|
