| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] in | 11178 |
|
| 2 | been [v-ing] in | 903 |
|
| 3 | [be] teaching in | 20 |
|
| 4 | be teaching in | 20 |
|
| 5 | been teach in | 18 |
|
| 6 | been teaching [prep] | 18 |
|
| 7 | been teaching [prep] | 18 |
|
| 8 | been teaching in | 7 |
|
| 9 | [been] teaching in | 7 |
|
