| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | patients who had [adv] [verb] | 15 |
|
| 2 | patients who had [adv] [vb pp] | 15 |
|
| 3 | patients who had [adv] [verb] | 8 |
|
| 4 | patients who had not [verb] | 7 |
|
| 5 | patients who had [not/n't] [verb] | 7 |
|
| 6 | patients who had not [verb] | 7 |
|
| 7 | patients who had [adv] had | 6 |
|
| 8 | patients who had [adv] have | 6 |
|
| 9 | patients who had previously [verb] | 5 |
|
| 10 | patients who had previously [verb] | 5 |
|
