| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | service be to be | 42 |
|
| 2 | service [is] to be | 29 |
|
| 3 | service is to be | 29 |
|
| 4 | service [was/were] to be | 11 |
|
| 5 | service was to be | 9 |
|
