Examples:

incorrect              : Before he died, the man who lives across the street used to help me with my English.
correct                  : Before he died, the man who lived across the street used to help me with my English.

incorrect              : Until the day she died, the lady who lives next door visits me almost everyday.
correct                  : Until the day she died, the lady who lived next door visited me almost everyday.

incorrect              : Just befor e he died, my friend who writes poetry published his first book.
correct                  : Just befor e he died, my friend who wrote poetry published his first book.

Related posts:

1. Errors in Affirmative Agreement of Verbs
2. Error in Negative Agreement of Verbs
3. Errors in Gerund after prepositions

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