| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] be [vb pp] [adv prt] | 70 |
|
| 2 | could [verb] be [vb pp] [adv prt] | 70 |
|
| 3 | could have be [vb pp] [adv prt] | 69 |
|
| 4 | could [verb] been [vb pp] [adv prt] | 69 |
|
| 5 | could have be [vb pp] [adv prt] | 69 |
|
| 6 | could [verb] be [vb pp] out | 19 |
|
| 7 | could [verb] be [vb pp] up | 16 |
|
| 8 | could [verb] be [vb pp] down | 9 |
|
| 9 | could [verb] be carried [adv prt] | 8 |
|
| 10 | could [verb] be [vb pp] in | 6 |
|
| 11 | could [verb] be put [adv prt] | 6 |
|
| 12 | could [verb] be [vb pp] on | 5 |
|
