| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] [art] | 846 |
|
| 2 | it is often [verb] | 364 |
|
| 3 | it is often [art] | 124 |
|
| 4 | is often [verb] [art] | 51 |
|
| 5 | it often [verb] [art] | 37 |
|
