| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been [prep] | 289 |
|
| 2 | [verb] been behind | 46 |
|
| 3 | [to-vb] [be] behind | 6 |
|
| 4 | [to-vb] be behind | 6 |
|
| 5 | [to-vb] [been] behind | 6 |
|
