| 5-1-2 | ||||
| grade | words and phrases | freq | ||
| COCA | Google Books Corpus | | ||
| B+ | academic qualifications | 41 | 7914 | / |
| B | better vehicle | 20 | 2227 | / |
| A+ | certain degree | 560 | / | / |
| A | educational background | 222 | / | / |
| C+ | educational degrees | 7 | 1677 | 145,000 |
| C+ | elite students | 10 | 836 | 112,000 |
| B+ | established fact | 39 | 60,571 | / |
| B+ | excellent ability | 2 | 2758 | / |
| B+ | excellent candidates | 23 | 3928 | / |
| C+ | excellent employees | 2 | 585 | 132,000 |
| B+ | fair standard | 2 | 4928 | / |
| A | great importance | 424 | / | / |