| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this is [subord] | 956 |
|
| 2 | this is because | 900 |
|
| 3 | this is as | 22 |
|
| 4 | this is if | 9 |
|
| 5 | this is before | 8 |
|
| 6 | this is after | 5 |
|
