| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [adv] have a | 79 |
|
| 2 | [modal v] always have a | 52 |
|
| 3 | should [adv] have a | 50 |
|
| 4 | should always [verb] a | 24 |
|
| 5 | should always [vb infin] a | 24 |
|
| 6 | should always have [art] | 13 |
|
| 7 | should always have a | 6 |
|
| 8 | should always have a | 6 |
|
