| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [prep] [conj] | 235 |
|
| 2 | it is [prep] note | 217 |
|
| 3 | is [prep] note [conj] | 145 |
|
| 4 | it is note [conj] | 6 |
|
