| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] [pron] | 11415 |
|
| 2 | be [v-ing] [prep] [pron] | 11414 |
|
| 3 | been [verb] [prep] [pron] | 4841 |
|
| 4 | [been] [v-ing] [prep] [pron] | 1140 |
|
