| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | course they do n't [vb infin] | 10 |
|
| 2 | course they [vb base] n't [vb infin] | 5 |
|
| 3 | course they do n't [vb infin] | 5 |
|
| 4 | course they [vb past] n't [vb infin] | 5 |
|
| 5 | course they did n't [vb infin] | 5 |
|
