| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be kept alive | 10 |
|
| 2 | [vb mod] be kept alive | 10 |
|
| 3 | [prep] be kept alive | 8 |
|
| 4 | to be kept alive | 8 |
|
| 5 | [prep] be kept alive | 8 |
|
| 6 | to be kept alive | 8 |
|
| 7 | be kept alive [prep] | 8 |
|
| 8 | be kept alive [prep] | 8 |
|
