| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is usually [subord] | 17 |
|
| 2 | is usually because | 14 |
|
| 3 | is usually because | 14 |
|
| 4 | is usually [that] | 5 |
|
| 5 | is usually that | 5 |
|
| 6 | is usually that | 5 |
|
