| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | course be [prep] three [noun pl] | 24 |
|
| 2 | course [be] of three [noun pl] | 24 |
|
| 3 | course [be] of three [noun pl] | 24 |
|
| 4 | course [be] [prep] three years | 24 |
|
| 5 | course [be] [prep] three [noun pl] | 24 |
|
| 6 | course [is] [prep] three [noun pl] | 24 |
|
| 7 | course is [prep] three [noun pl] | 24 |
|
