| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [conj] a | 52 |
|
| 2 | it is [conj] a | 50 |
|
| 3 | it is [that] a | 26 |
|
| 4 | it is that a | 26 |
|
| 5 | it is that a | 26 |
|
| 6 | it is [coord] a | 18 |
|
| 7 | it is but a | 16 |
|
| 8 | it is but a | 16 |
|
| 9 | it is [subord] a | 8 |
|
| 10 | it is because a | 6 |
|
| 11 | it is because a | 6 |
|
