| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] it is that | 47 |
|
| 2 | [verb] [Wh adv] it is [that] | 46 |
|
| 3 | [verb] why it is [that] | 27 |
|
| 4 | [verb] why it is [that] | 27 |
|
| 5 | explain [adv] it is [that] | 20 |
|
| 6 | [to-vb] [adv] it is [that] | 18 |
|
| 7 | [verb] how it is [that] | 17 |
|
| 8 | [verb] how it is [that] | 17 |
|
| 9 | [vb infin] [adv] it is [that] | 10 |
|
| 10 | [vb base] [adv] it is [that] | 9 |
|
| 11 | to explain [adv] it is [that] | 9 |
|
| 12 | wonder [adv] it is [that] | 6 |
|
| 13 | know [adv] it is [that] | 5 |
|
