| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [vb infin] [been] at [art] | 7 |
|
| 2 | it [modal v] have [been] at [art] | 7 |
|
| 3 | it [modal v] [vb infin] been at [art] | 7 |
|
| 4 | it [vb mod] [vb infin] [been] at [art] | 7 |
|
| 5 | it [modal v] [vb infin] [been] at the | 6 |
|
