Future Perfect

The Past

• Past Continuous - "I was building a wall yesterday."
• Past Simple - "I built a new garage last month."
• Past Perfect Simple - "By the time my last company went bust we had already built the new shopping centre."
• Past Perfect Continuous - "We had been building the new shopping centre for 2 months when we heard about the bankruptcy."

The Present

• Present Continuous - "It's Monday morning and I'm building a wall."
• Present Simple - "I usually build commercial buildings."
• Present Perfect Simple - "I have already built two shopping centres this year."
• Present Perfect Continuous - "I have been building this shopping centre since we won the contract.

The Future

• Future Continuous - "I'm building a new garage tomorrow."
• Future Simple - "I think I'll build my own house when I can afford to."
• Future Perfect Simple - "I hope I will have already built my own house by the time I am 40."
• Future Perfect Continuous - "This time next week I will have been building this shopping centre for two months."