| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] [modal v] [adv] | 72 |
|
| 2 | [is] [verb] [vb mod] [adv] | 72 |
|
| 3 | [be] [verb] should [adv] | 33 |
|
| 4 | [is] [verb] should [adv] | 8 |
|
