| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] have been [v-ing] [prep] | 2747 |
|
| 2 | but [pers pn] have been [v-ing] | 126 |
|
| 3 | but [pers pn] have been [prep] | 75 |
|
| 4 | but have been [v-ing] [prep] | 5 |
|
