The use of appropriate of words in writing, particularly frequently occurring four words combinations in academic register, is very important because it is an effective building block of academic text used by expert writers for effective communication. Yet teaching of four-word lexical bundles is rarely discussed in ESL writing textbooks. Recent research has shown that corpora can be a useful tool for helping L2 writers improve their use of four-word lexical bundles. This article presents an attempt to teach four-word lexical bundles to advanced intensive ESOL students at a community college in the USA. The article shows the application of iWeb for the selection and instruction of four-word lexical bundles to teach different ways of concluding an essay.