| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] [art] [adj] | 609 |
|
| 2 | which have [been] [art] [adj] | 77 |
|
| 3 | which have [been] [v-ing] [art] | 44 |
|
| 4 | which have [been] [v-ing] [adj] | 31 |
|
