| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [vb pp] [prep] | 15500 |
|
| 2 | it is [vb pp] [prep] | 4737 |
|
| 3 | it is [adv] [vb pp] | 3868 |
|
| 4 | it is [adv] [prep] | 1622 |
|
| 5 | it [adv] [vb pp] [prep] | 88 |
|
