| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] had to be [art] | 63 |
|
| 2 | there had to [be] [art] | 63 |
|
| 3 | [ex0] had to [be] a | 48 |
|
| 4 | [ex0] had to [be] an | 9 |
|
