Idioms have always been a very integral part of the English language. But!!! Where do I start? The English language literally has thousands and thousands of idioms which makes it incredibly difficult for ESL students to learn. So we came up with what we believe the 150 most important commonly used idioms. These are idioms that can be used daily in conversations, compositions, emails, letters and online chats. They will be found in English newspapers, novels, comics, websites, and English tests. Here are some free materials to accompany First Idioms. Prepositions of Place Animals Body Idioms Tests First Idioms Test Beginner 1-25 First Idioms Test Beginner 1-50 First Idioms Test - Intermediate 1-25 First Idioms Test - Intermediate 1-50