| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] [prep] [det] | 545 |
|
| 2 | 'd [been] [v-ing] [prep] | 338 |
|
| 3 | 'd [been] [v-ing] [det] | 50 |
|
| 4 | 'd [been] [prep] [det] | 29 |
|
