| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] could [adv] | 5985 |
|
| 2 | [noun sg] [adv] maintain | 77 |
|
| 3 | could [adv] maintain | 31 |
|
| 4 | [noun sg] could maintain | 12 |
|
