| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have had to be | 286 |
|
| 2 | [verb] had to be | 286 |
|
| 3 | [vb base] had to be | 99 |
|
| 4 | have had to be | 89 |
|
| 5 | [vb -s] had to be | 86 |
|
| 6 | has had to be | 80 |
|
| 7 | [vb infin] had to be | 58 |
|
| 8 | have had to be | 57 |
|
| 9 | [vb past] had to be | 43 |
|
| 10 | had had to be | 41 |
|
| 11 | [adv] had to be | 31 |
|
| 12 | [adv] had to be | 25 |
|
| 13 | 've had to be | 10 |
|
| 14 | [not/n't] had to be | 6 |
|
| 15 | 's had to be | 6 |
|
| 16 | not had to be | 6 |
|
| 17 | had [noun] to be | 7 |
|
| 18 | had [noun sg] to be | 6 |
|
| 19 | had to be [verb] | 249 |
|
| 20 | had to be [vb pp] | 247 |
|
| 21 | had to be [adj] | 26 |
|
| 22 | had to be [adj] | 25 |
|
| 23 | had to be [adv] | 25 |
|
| 24 | had to be [adv] | 24 |
|
| 25 | had to be made | 15 |
|
| 26 | had to be make | 15 |
|
| 27 | had to be [art] | 9 |
|
| 28 | had to be [art] | 9 |
|
| 29 | had to be a | 8 |
|
| 30 | had to be taken | 7 |
|
