| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [pers pn] [modal v] [vb infin] a | 1602 |
|
| 2 | [pers pn] [modal v] [vb infin] [been] a | 694 |
|
| 3 | [adv] [pers pn] [modal v] [vb infin] [been] | 563 |
|
| 4 | [adv] [modal v] [vb infin] [been] a | 24 |
|
