| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [conj] it is | 359 |
|
| 2 | [modal v] [vb infin] [conj] it [verb] | 356 |
|
| 3 | [vb infin] [conj] it is [verb] | 78 |
|
| 4 | [modal v] [vb infin] it is [verb] | 20 |
|
