| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is to [be] | 672 |
|
| 2 | is to [be] a | 228 |
|
| 3 | it to [be] a | 163 |
|
| 4 | it is to a | 19 |
|
| 5 | it is [be] a | 6 |
|
