Once you spell the word correctly, a word tree will appear to the right of the screen with related words to help you increase your vocabulary. Click play to hear the word. Spell the word. Click Guess. Correct? Click the 'next word' button. Guessed three times and giving up? Click the 'I surrender' button for the correct spelling.

Grammar reference guide with explanations, examples, and a large variety of exercises. The link for the exercises is at the bottom of each lesson.

Grammar explanations and practice by category.

Click on start. To start the game you have to choose the correct words in the paragraph shown.

Grammar exercises. Choose your level and topic. Click on the explanation button at the top of each exercise to review the topic.

Excellent site to practice grammar. Multiple exercises for each grammar topic. Divided by topic and level. This site also includes exercises in vocabulary, writing, listening, and more.

YouTube channel Walk & Study. Teaches the the simple tenses, and present progressive (continuous) while walking around and exploring on the video. You can turn on subtitles to read as you listen.

Grammar Reference with a quiz at the end of each lesson.

Grammar reference lessons with additional links and exercises at the bottom of each lesson.

Grammar exercises divided by category.

Grammar guide and exercises. Choose your level and then search for your topic.

Grammar explanations with links to exercises at the end of each explanation.