| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is [adv] [vb pp] [to-vb] been | 14 |
|
| 2 | [pron] is [adv] [vb pp] to have be | 14 |
|
| 3 | [pers pn] is [adv] [vb pp] [to-vb] be | 8 |
|
| 4 | it is [adv] [vb pp] [to-vb] be | 5 |
|
| 5 | it is [adv] [vb pp] [to-vb] be | 5 |
|
