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Learn more about the English language and improve your writing with our online grammar lessons. Select from any of the modules to start an engaging and easy-to-follow exercise.

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  2. 11. Punctuation

    1. Pretest: Punctuation
    2. Lesson 1: Period versus Question Mark
    3. Lesson 2: Period versus Exclamation Point
    4. Lesson 3: Period versus Question Mark, E...
    5. Lesson 4: Comma - Noun of Address
    6. Lesson 5: Comma - Transitional Adverbs
    7. Lesson 6: Comma - Prepositional Phrases
    8. Lesson 7: Comma - Participial Phrases
    9. Lesson 8: Comma - Participial Phrases ve...
    10. Lesson 9: Comma - Introductory Dependent...
    11. Lesson 10: Comma - Absolute Expressions
    12. Quiz: End Points and Commas
    13. Lesson 11: Comma - Joining by Coordinate ...
    14. Lesson 12: Comma - Joining by Coordinate ...
    15. Lesson 13: Comma - Parenthetical Expressi...
    16. Lesson 14: Comma - Words in Apposition
    17. Lesson 15: Comma - Adjective Clauses
    18. Lesson 16: Comma - Adjective Clauses (Con...
    19. Lesson 17: Comma - Quotations and the Comma
    20. Lesson 18: Comma - Dates and the Comma
    21. Lesson 19: Comma - Addresses and the Comma
    22. Lesson 20: Comma - Items in a Series
    23. Lesson 21: Comma - Modifiers in a Series
    24. Quiz: End Points and More Commas
    25. Lesson 22: Quotation Marks
    26. Lesson 23: Question Marks versus Other Ma...
    27. Lesson 24: Quotation Marks versus Undersc...
    28. Lesson 25: Quotation Marks - Ellipsis Poi...
    29. Lesson 26: Parentheses - Enclosing the Pa...
    30. Lesson 27: Dash - Enclosing the Parenthet...
    31. Lesson 28: Dash - Joining Independent Sta...
    32. Lesson 29: Semicolon - Joining Independen...
    33. Lesson 30: Semicolon - Separating Items i...
    34. Lesson 31: Colon - Introducing the Follow...
    35. Lesson 32: Virgule (Slash)
    36. Quiz: Punctuation
    37. Review: Punctuation
    38. Posttest: Punctuation
    39. Start learning about
      Punctuation
  3. 14. Troublesome Words

    1. Pretest: Troublesome Words
    2. Lesson 1: Accept versus Except
    3. Lesson 2: Affect versus Effect
    4. Lesson 3: Advice versus Advise
    5. Lesson 4: All Ready versus Already
    6. Lesson 5: All-round versus All Around
    7. Lesson 6: All Together versus Altogether
    8. Lesson 7: All Ways versus Always
    9. Lesson 8: Allay versus Alley, Ally
    10. Lesson 9: Allude versus Elude
    11. Lesson 10: Allusion versus Illusion
    12. Quiz: Cumulative I
    13. Lesson 11: Alternate versus Alternative
    14. Lesson 12: Among, Amongst versus Between
    15. Lesson 13: Apprehend versus Comprehend
    16. Lesson 14: Award versus Reward
    17. Lesson 15: Bad versus Badly
    18. Lesson 16: Can versus May
    19. Lesson 17: Born versus Borne
    20. Lesson 18: Breath versus Breathe
    21. Lesson 19: Bring, Carry, Fetch versus Take
    22. Lesson 20: Anger, Angry versus Mad
    23. Lesson 21: Censor versus censure
    24. Lesson 22: Complement versus compliment
    25. Quiz: Cumulative II
    26. Lesson 23: Council versus Counsel
    27. Lesson 24: Continual, Continuous versus C...
    28. Lesson 25: Emigrate versus Immigrate
    29. Lesson 26: Farther versus Further
    30. Lesson 27: Its versus It's, 'Tis
    31. Lesson 28: Lie, Lying, Lay, Lain versus L...
    32. Lesson 29: Lie, Lying, Lay, Lain versus L...
    33. Lesson 30: Notable versus Notorious, Noto...
    34. Lesson 31: Persecute versus Prosecute
    35. Quiz: Cumulative III
    36. Lesson 32: Principal versus Principle
    37. Lesson 33: Set versus Sit
    38. Lesson 34: Stationary versus Stationery
    39. Lesson 35: Their versus There, They're
    40. Lesson 36: Whether versus Weather
    41. Lesson 37: You and I versus You and Me
    42. Lesson 38: To versus Too, Two
    43. Lesson 39: Sight versus Site, Cite
    44. Lesson 40: Capital versus Capitol
    45. Quiz: Cumulative IV
    46. Review: Troublesome Words
    47. Posttest: Troublesome Words
    48. Start learning about
      Troublesome Words