| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] [noun sg] of | 18 |
|
| 2 | it is [to-vb] [noun sg] of | 7 |
|
| 3 | it is [v-ing] [noun sg] of | 5 |
|
| 4 | it is [vb pp] [noun sg] of | 5 |
|
| 5 | it is [verb] part of | 5 |
|
