| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [vb pp] [adv prt] [pos pn] [noun] | 7 |
|
| 2 | could [vb infin] [vb pp] [adv] [pos pn] [noun sg] | 6 |
|
| 3 | could have [vb pp] [adv] [pos pn] [noun] | 6 |
|
| 4 | could [vb infin] [vb pp] out [pos pn] [noun] | 5 |
|
| 5 | could [vb infin] [vb pp] out [pos pn] [noun] | 5 |
|
