| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] who [vb past] [been] [v-ing] [prep] | 12 |
|
| 2 | [noun prp] who [vb past] been [v-ing] [prep] | 12 |
|
| 3 | [noun prp] who had [be] [v-ing] [prep] | 12 |
|
| 4 | [noun prp] who [vb past] be [v-ing] [prep] | 12 |
|
