| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] [verb] [is] | 154 |
|
| 2 | [adv] [adv] [vb pp] [is] | 106 |
|
| 3 | [adv] [adv] known [be] | 23 |
|
| 4 | [adv] [adv] known [is] | 15 |
|
| 5 | [adv] [adv] known [is] | 13 |
|
| 6 | [adv] [adv] know [is] | 13 |
|
