| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [adv prt] [prep] a | 1339 |
|
| 2 | should [vb infin] [adv prt] [prep] | 477 |
|
| 3 | should [vb infin] [prep] a | 445 |
|
| 4 | should [vb infin] [adv prt] a | 55 |
|
