| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] system for | 484 |
|
| 2 | [noun sg] systems for | 170 |
|
| 3 | operating system for | 53 |
|
| 4 | management system for | 38 |
|
| 5 | information system for | 27 |
|
| 6 | computer system for | 21 |
|
| 7 | control system for | 14 |
|
| 8 | expert system for | 12 |
|
| 9 | support system for | 11 |
|
| 10 | delivery system for | 10 |
|
| 11 | security system for | 8 |
|
| 12 | retrieval system for | 8 |
|
| 13 | software system for | 8 |
|
| 14 | development system for | 7 |
|
| 15 | education system for | 6 |
|
| 16 | storage system for | 6 |
|
| 17 | quota system for | 6 |
|
| 18 | file system for | 6 |
|
| 19 | distribution system for | 6 |
|
| 20 | processing system for | 6 |
|
| 21 | assessment system for | 5 |
|
| 22 | office system for | 5 |
|
| 23 | registration system for | 5 |
|
| 24 | scoring system for | 5 |
|
| 25 | transaction system for | 5 |
|
