Abstract
This paper presents Linggle Knows, an English grammar and linguistic search engine. Linggle Knows help people writing by displaying lexical and grammatical information extracted from a couple of large scale corpora, including GoogleWeb 1T 5-gram, British National Corpus (BNC), New York Times Annotated Corpus (NYT), etc. It not only describes how a word is genuinely used, but also recommends various alternative collocations and word combinations. In addition, it gives real-world examples to better explain how a word is used in reality.