Here's my analysis of the concordance lines for 'set vvd in':

1. Collocates
Common words immediately before: reality, winter, panic, darkness Common words after: motion, before, when, and Notable temporal markers: then, suddenly, immediately

2. Semantic Prosody
Generally negative prosody, with many instances describing deterioration or negative change: - Mental states: panic, depression, disillusionment - Physical conditions: exhaustion, paralysis, gangrene - Natural phenomena: darkness, bad weather, winter - Negative emotions: guilt, fear, annoyance

3. Register & Formality
Appears across multiple registers: - Literary/narrative prose (formal) - News reporting (neutral) - Academic writing (formal) - Conversational dialogue (informal) Most instances are in formal or semi-formal contexts.

4. Phraseological Patterns
Common fixed expressions: - "set in motion" (frequent) - "reality set in" (very frequent) - "winter set in" - "panic set in"

5. Grammatical Patterns
- Usually functions as intransitive verb - Often followed by temporal or causal clauses - Frequently occurs with temporal markers - Sometimes takes locative complements

6. Recurring Sentence Structures
- [Temporal marker] + set in: "Then reality set in" - [Subject] + set in + [temporal/causal clause]: "Winter set in and..." - As/When + [subject] + set in: "As panic set in..."

7. Pragmatic Function / Discourse Role
- Marks transitions or turning points - Signals deterioration or negative change - Used to create narrative tension - Indicates onset of conditions or states

8. Frequency & Dispersion
- Well distributed across different genres - Particularly common in narrative contexts - Frequent in news reporting and literary texts - Regular occurrence in historical accounts

9. Thematic Context (Topics)
- Weather and seasonal changes - Historical events and developments - Personal/psychological experiences - Medical conditions - Social and political changes - Literary and film settings