Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Name the sum of year for connaught engineering and points less than 0

### Inputs:
table_name: table, columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']

### Response:
SELECT SUM Year FROM table WHERE Entrant = connaught engineering AND Points < 0