| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb -s] be [v-ing] for [art] | 5 |
|
| 2 | which [vb -s] been [v-ing] for [art] | 5 |
|
| 3 | which [vb -s] be [v-ing] for [art] | 5 |
|
| 4 | which has be [v-ing] for [art] | 5 |
|
