| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [to-vb] was | 249 |
|
| 2 | had to do be | 192 |
|
| 3 | had to have be | 12 |
|
| 4 | had [to-vb] been | 12 |
|
| 5 | had to say be | 12 |
|
| 6 | had [to-vb] is | 8 |
|
| 7 | had to pay be | 6 |
|
