想要留学英语可以表达为：
1. I want to study abroad.
2. I aspire to pursue my education in a foreign country.
3. I am eager to go abroad to study.
4. My goal is to study internationally.
这些句子都可以帮助你表达想要留学的意愿。根据具体的语境和需求，你可以选择合适的句子来表达自己的意图。例如，如果你想要申请去美国留学，可以说：“I want to study in the USA.” 或者 “I aspire to study at a university in the United States.”