| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] maintain [art] | 12 |
|
| 2 | could [adv] maintain [art] | 12 |
|
| 3 | could [adv] maintain [art] | 12 |
|
| 4 | could not maintain [art] | 9 |
|
| 5 | could not maintain [art] | 9 |
|
| 6 | could [not/n't] maintain [art] | 9 |
|
| 7 | could [adv] maintain the | 6 |
|
| 8 | could [adv] maintain a | 6 |
|
| 9 | could [adv] maintain the | 6 |
|
