| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] [prep] | 65861 |
|
| 2 | been [v-ing] [prep] | 6838 |
|
| 3 | be doing [prep] | 960 |
|
| 4 | [be] doing [prep] | 960 |
|
| 5 | been do [prep] | 748 |
|
| 6 | [been] doing [prep] | 161 |
|
| 7 | been doing [prep] | 161 |
|
