| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is often [verb] is that | 5 |
|
| 2 | is often [verb] [is] that | 5 |
|
| 3 | is often [vb pp] [be] that | 5 |
|
| 4 | is often [verb] be that | 5 |
|
