| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] have been [adj] [prep] | 601 |
|
| 2 | [pron] [vb mod] have been [adj] [prep] | 474 |
|
| 3 | [pron] [vb mod] have been difficult [prep] | 20 |
|
| 4 | [pron] [modal v] have been difficult [prep] | 20 |
|
| 5 | [pron] [vb mod] have [been] difficult [prep] | 20 |
|
| 6 | [pron] [vb mod] have [be] difficult [prep] | 20 |
|
| 7 | [pron] [vb mod] have be difficult [prep] | 20 |
|
| 8 | [pron] [vb mod] [verb] been difficult [prep] | 20 |
|
