| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [v-ing] [noun sg] | 72 |
|
| 2 | who had been [v-ing] [noun sg] | 38 |
|
| 3 | who has been [v-ing] [noun sg] | 17 |
|
| 4 | who have been [v-ing] [noun sg] | 9 |
|
| 5 | who have been playing [noun sg] | 7 |
|
