| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [that] | 995 |
|
| 2 | is [adv] [that] | 683 |
|
| 3 | is often [conj] | 21 |
|
| 4 | [be] often [that] | 10 |
|
| 5 | be often [that] | 10 |
|
| 6 | [is] often [that] | 10 |
|
| 7 | is often [that] | 9 |
|
