| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] [art] | 1987 |
|
| 2 | that have been [v-ing] [prep] | 127 |
|
| 3 | that have been [prep] [art] | 61 |
|
| 4 | that have been [v-ing] [art] | 13 |
|
