Complex sentence: Since completing his four-year sentence at the end of 2010, Mizanur Rahman immediately began to continue his Islamist activities around the UK and on the Internet, actively calling for the laws in Britain to be changed to the Islamic Shari'ah as an Islamic Khilafah state.
Split into simpler sentences: Since completing his four-year sentence at the end of 2010, Mizanur Rahman immediately began to revive his Islamist activities around the UK and on the Internet. He has called for the laws in Britain to be changed to the Islamic Shari'ah so that the country would become an Islamic Khilafah state.