1. If I hadn't been in a hurry, I wouldn't have spilled my tea over my shirt.
2. If I hadn't missed the bus, I wouldn't have been late for work and my boss wouldn't have been angry.
3. If I hadn't been late for work, I wouldn't have stayed late.
4. If I hadn't woken up late, I wouldn't have been late for work. If I hadn't been late for work, I wouldn't have stayed late. If I hadn't stayed late, I wouldn't have got home late and my family wouldn't have been worried.