Present simple: Mr Brain builds the house.
Present continuous: Mr Brain is building the house at the moment.
Present perfect: Mr Brain has just built the house.
Present perfect continuous: Mr Brain has been building the house for 2 months.
Past Simple: Mr Brain built the house last year.
Past continuous: Mr Brain was building the house when I came.
Past Perfect: Mr Brain had built the house before he moved to Australia.
Past Perfect continuous: Mr Brain had been building the house for 2 months when his son was born.
Future Simple: Mr Brain will build the house soon.
Future Continuous: Mr Brain will be building the house tomorrow at 5 o'clock.
Future perfect: Mr Brain will have built the house by the end of September.
Future perfect continuous: Mr Brain will have been building the house for 2 months already by the end of September.