| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may therefore [vb infin] [been] | 8 |
|
| 2 | may therefore [vb infin] [be] | 8 |
|
| 3 | may therefore have [be] | 8 |
|
| 4 | may therefore [vb infin] been | 8 |
|
| 5 | may therefore [vb infin] be | 8 |
|
