If you plan to move abroad, there will be many things that you must prepare. Starting from the various items that you will carry up to the terms and documents that you must also complete. One of the documents that you must complete is a visa. You can take an English language test if you want to move to England at http://britishlifeskills.com to get an immigration visa.
In addition, you also have to have enough time to prepare because some companies and government agencies that send their staff abroad seem happy to give notice of unpredictable times between a few months to the previous few days when you are selected to move abroad. In cases like this, ask for as much help as possible.
If you have freedom with your own time frame, give yourself at least six months. You need at any time from this period to take care of many things, including handling property, car, pet, insurance, packaging and shipping, banking and other matters.