Retrieve the language
Link ideas according to meaning: because/as/since introduce reasons; although/even though introduce concession; however marks a contrast between sentences; therefore/as a result introduce consequences. Despite/in spite of take a noun or -ing phrase, not a full finite clause directly. Punctuation matters: Although he was nervous, he spoke; He was nervous; however, he spoke.
Compound nouns combine words into one concept: nature reserve, food chain, greenhouse gas, wildlife protection. The final noun usually determines the plural: nature reserves, food chains. Some compounds are written as one word, some separately or with a hyphen; check established usage. Stress often falls earlier in noun compounds, but patterns vary. Choose a compound for meaning rather than merely placing any two nouns together.