| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] may have been [vb pp] [prep] | 149 |
|
| 2 | they [vb mod] have been [vb pp] [prep] | 130 |
|
| 3 | they [modal v] have been [vb pp] [prep] | 130 |
|
| 4 | they may have been [verb] [prep] | 26 |
|
| 5 | they may have be [vb pp] [prep] | 24 |
|
| 6 | they may have [be] [vb pp] [prep] | 24 |
|
| 7 | they may have [been] [vb pp] [prep] | 24 |
|
| 8 | they may [verb] been [vb pp] [prep] | 24 |
|
| 9 | they may have been [vb pp] [prep] | 24 |
|
