| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] had a hard | 30 |
|
| 2 | have have a hard | 30 |
|
| 3 | [vb -s] have a hard | 10 |
|
| 4 | [vb past] have a hard | 9 |
|
| 5 | 's have a hard | 9 |
|
| 6 | [vb base] have a hard | 8 |
|
| 7 | [vb infin] have a hard | 7 |
|
| 8 | 've have a hard | 5 |
|
