| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] [been] [verb] [prep] | 3127 |
|
| 2 | [vb mod] [verb] [be] [vb pp] [prep] | 2953 |
|
| 3 | [vb mod] [verb] [been] [vb pp] [prep] | 2823 |
|
| 4 | [modal v] [verb] [been] [vb pp] [prep] | 2823 |
|
