Mixed Collocations
Practice the highest-difficulty collocations across all functional prepositions: interested in, depends on, good at, consists of, as vs like, and multi-error correction in connected text.
Mixed Functional Preposition Collocations
The final subtopic brings together the most error-prone collocations from across the full set — those that resist rule-based learning and must be acquired as fixed chunks. International corpus research consistently identifies 'interested in', 'depend on', 'good at', and 'consists of' as among the highest-frequency preposition errors in B1–B2 learner writing, particularly from speakers of languages (including Russian, Polish, and German) whose equivalent expressions use different prepositions. These exercises also practise detecting multiple errors in connected text — a skill required at B2 and above.
High-Priority Collocations
She depends on her parents. (never 'depends from')
She's very good at her job. (never 'good in')
She works as a freelance designer. (never 'works like')
Multi-Error Text Practice
At B2 level, errors appear in clusters within authentic-length texts. The exercises in this subtopic train you to identify all errors simultaneously — the same skill tested in Cambridge B2 First Use of English tasks.
L1 Interference Patterns
Russian: «интересоваться + instrumental» → 'interested by' (wrong); «зависеть от» → 'depend from' (wrong); «состоять из» → 'consist from' (wrong). All three require the learner to override a strong L1 transfer pattern.
Common Mistakes
✗ She depends from her experience. → ✓ She depends on her experience.
✗ She's good in her job. → ✓ She's good at her job.
✗ She works like a freelance designer. → ✓ She works as a freelance designer.