ESL General English Grammar Questionshttp://www.englishforums.com/English/GeneralEnglishGrammarQuestions/Forum12.htmAsk your questions on grammar and get your sentence checked. We answer lots of different types of general English grammar questions here.enCSMOD (Build: 3273.32735)Re: Doublehttp://www.englishforums.com/English/Double/lkmw/post.htm#57145Wed, 24 Nov 2004 03:18:37 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:57145CalifJim0http://www.englishforums.com/English/Double/lkmw/post.htm#57145http://www.englishforums.com/English/comments12-57145.xmlIt seems fine to me, but why use extra words? <br /> <br />By the way, "It is predicted that this number will double" or "This number is predicted to double" may be what you want instead of "predictable", which is less idiomatic. <br /> <br />CJDoublehttp://www.englishforums.com/English/Double/lkmh/post.htmWed, 24 Nov 2004 03:12:47 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:57144John Dick1http://www.englishforums.com/English/Double/lkmh/post.htmhttp://www.englishforums.com/English/comments12-57144.xmlWorldwide, there are currently about 600 million people over the age of 60. It is predictable that this number will double to 1.2 billion by 2025. <br /> <br />Can I say, " ...this number will be doubled to 1.2 billion by 2025."