| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] to keep in [noun sg] | 11 |
|
| 2 | [modal v] [vb infin] to keep in [noun sg] | 11 |
|
| 3 | would [vb infin] to keep in [noun sg] | 6 |
|
| 4 | [vb infin] to keep in [noun sg] [prep] | 5 |
|
| 5 | [vb infin] to keep in [noun sg] [prep] | 5 |
|
