| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] who could be [vb pp] [adv prt] | 6 |
|
| 2 | who could have be [vb pp] [adv prt] | 5 |
|
| 3 | who could [verb] be [vb pp] [adv prt] | 5 |
|
| 4 | who could [vb infin] be [vb pp] [adv prt] | 5 |
|
| 5 | who could have be [vb pp] [adv prt] | 5 |
|
