| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been [v-ing] [prep] | 456 |
|
| 2 | they have been [v-ing] [prep] | 256 |
|
| 3 | [noun pl] they have been [v-ing] | 50 |
|
| 4 | [noun pl] they have been [prep] | 7 |
|
