| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] which have been [v-ing] [prep] | 18 |
|
| 2 | [noun pl] which [verb] been [v-ing] [prep] | 18 |
|
| 3 | [noun pl] which had been [v-ing] [prep] | 10 |
|
| 4 | [noun pl] which [vb past] been [v-ing] [prep] | 10 |
|
| 5 | [noun pl] which have been [v-ing] [prep] | 8 |
|
| 6 | [noun pl] which [vb base] been [v-ing] [prep] | 8 |
|
