| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | theory is [conj] it [verb] | 21 |
|
| 2 | theory is [conj] it [vb -s] | 20 |
|
| 3 | theory is that it [verb] | 19 |
|
| 4 | theory is that it [verb] | 19 |
|
| 5 | theory is [that] it [verb] | 19 |
|
