| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] to keep [adv prt] the | 7 |
|
| 2 | [was/were] [vb pp] keep [adv prt] the | 7 |
|
| 3 | was [verb] keep [adv prt] the | 5 |
|
| 4 | [was/were] [verb] keep up the | 5 |
|
