| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adj] [to-vb] | 25675 |
|
| 2 | [is] therefore [adj] | 669 |
|
| 3 | therefore [adj] [to-vb] | 428 |
|
| 4 | [is] therefore [to-vb] | 36 |
|
