| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] it [be] a | 1319 |
|
| 2 | it [be] [verb] a | 869 |
|
| 3 | [vb base] it [be] [verb] | 791 |
|
| 4 | [vb base] [be] [verb] a | 493 |
|
| 5 | [vb base] it [verb] a | 164 |
|
