| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] [verb] two | 56 |
|
| 2 | it be [adj] [to-vb] two | 54 |
|
| 3 | it is [adj] [verb] two | 40 |
|
| 4 | it be necessary [verb] two | 14 |
|
| 5 | it be possible [verb] two | 14 |
|
| 6 | it be [adj] have two | 11 |
|
| 7 | it was [adj] [verb] two | 10 |
|
| 8 | it be [adj] to have two | 9 |
|
| 9 | it be [adj] distinguish two | 8 |
|
| 10 | it be [adj] to distinguish two | 8 |
|
| 11 | it 's [adj] [verb] two | 6 |
|
| 12 | it be important [verb] two | 6 |
|
