| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | often [vb mod] to be | 5 |
|
| 2 | often used to [be] | 5 |
|
| 3 | often [vb mod] to [be] | 5 |
|
| 4 | often [vb mod] to [be] | 5 |
|
| 5 | often [vb mod] to be | 5 |
|
