| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [verb] at [art] | 37 |
|
| 2 | could [adv] [be] [verb] at [art] | 37 |
|
| 3 | could [adv] [be] [vb pp] at [art] | 35 |
|
| 4 | could [adv] [be] [verb] at the | 25 |
|
| 5 | could [adv] [be] [verb] at [art] | 24 |
|
| 6 | could not [be] [verb] at [art] | 13 |
|
| 7 | could only [be] [verb] at [art] | 13 |
|
| 8 | could only [be] [verb] at [art] | 13 |
|
| 9 | could [not/n't] [be] [verb] at [art] | 13 |
|
| 10 | could [adv] [be] [verb] at a | 10 |
|
| 11 | could not [be] [verb] at [art] | 9 |
|
