| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | system does [adv] [adv] [vb infin] | 6 |
|
| 2 | system [vb -s] not [adv] [vb infin] | 6 |
|
| 3 | system [vb -s] [adv] [adv] [vb infin] | 6 |
|
| 4 | system [vb -s] [not/n't] [adv] [vb infin] | 6 |
|
| 5 | system [vb -s] [adv] [adv] [vb infin] | 6 |
|
| 6 | system [vb -s] not [adv] [vb infin] | 5 |
|
