| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [conj] it [verb] | 1071 |
|
| 2 | theory is [conj] it | 23 |
|
| 3 | theory [conj] it [verb] | 18 |
|
| 4 | theory is [conj] [verb] | 5 |
|
