How to modify comments form using comment_form()?

Do you mean modifying its text or behavior? The function is very extensive and customizable. It both accepts extensive set of parameters and has a lot of hooks.

For starters see:

Related Posts:

  1. Using filter to add additional fields to comment_form()
  2. How to rearrange fields in comment_form()
  3. Removing the “Website” Field from Comments and Replies?
  4. How to add a class to the comment submit button?
  5. How to wrap submit button of comment form with div
  6. How do we remove the H3 tag for the reply-title I.D
  7. comments reply script not working
  8. How to display comment form error messages in the same page
  9. How do I set up real anonymous posting in bbpress forums? [closed]
  10. Success message in comment form
  11. How to allow the reply link to remain on the comment form after I have reached my 10 nested comment limit?
  12. Deep customization of the comment form?
  13. Why are default comments deprecated?
  14. Comments Reply Form
  15. Does WordPress Allow Blank/Empty Comment Submissions In WordPress?
  16. Comment form not showing up without comments
  17. Programmatically block commenting by restricting view of comment form
  18. How can comments be submitted when I don’t have a comment box on a page?
  19. Custom Field Added In Comment Form Not Showing In Edit
  20. Add a drop down list to comment form?
  21. How To Remove The “Click here to cancel reply” Link From The WordPress Comment Form
  22. Making a Comment on a page without being on that page?
  23. customize comment form
  24. How to add a div on comment fields / edited
  25. How to save new comment as custom comment type?
  26. WP comments form (custom) is displaying an extra comment field
  27. How to add consent checkbox in comment section
  28. How to add enctype to multipart/form-data to comment form?
  29. Changing position of cancel_comment_reply_link and other elements of comment form
  30. Comment form problem with comment_author_url and HTML5 input placeholders
  31. Publish a message on facebook after having posted a comment
  32. Edit Comment_Field while using T5 Comment Textarea On Top-Plugin
  33. stackexchange-like submit comment window
  34. Share comment to twitter after publishing [closed]
  35. Disable comments
  36. How to add attributes to the comment form tag?
  37. Comment form connection to Gravity Forms
  38. Auto-fill Custom comment fields
  39. The comment login form is visible to me but not to the user
  40. Change order of comment fields
  41. WordPress custom form action url
  42. How to call my custom WordPress Comment form without getting the comments?
  43. Create comments.php form of custom HTML code
  44. How can I test why the comment hook is not working?
  45. How can I convert anonymous commenters into registered users?
  46. comment_post action hook running on page load instead of after a comment is posted
  47. Add class to comment form div when comment-reply button is clicked
  48. To whom do emails get sent via the WordPress comments form?
  49. blank page after submitting a comment
  50. Display complete comment section via post ID
  51. Notification if Comment Author Field is left empty. E.g. change input border colour
  52. Assign author to comment from post edit page
  53. How to retain comment text on comment form after login/registration?
  54. Check if comment was successfully submited
  55. After Submitting Comment Form Shows an Empy Page in WordPress
  56. Spammers attacking my WordPress Site – Removing URL field from core? [closed]
  57. Ajax submit comments
  58. Why could my comment_form variable not be working?
  59. Disable only the comment form/box itself?
  60. Display avatar with comment form?
  61. How to make comments private for commentor and post author
  62. Name of comment field differs on different sites
  63. How to hide wordpress post comment form for specific role
  64. comment_notes_before not working
  65. Add comment_meta to wp_comment_reply
  66. How to create post comment from different domain
  67. Get comment id of the individual comments in comment list when modifying comment posted using comment text filter
  68. How can I embed comments plugin to my own website?
  69. Custom comment field not showing when logged-in
  70. Comments on future posts
  71. get_comment_meta not behaving as expected
  72. unsetting required fields in the comment reply form
  73. Copy and Paste Password for Comments
  74. Returning error upon comment being flagged as spam
  75. How t Remove Labels from comment Box
  76. Clicking Comment “Reply” Button only replies to first comment
  77. How to filter comments by comment_meta
  78. Changing the Comment Fields using Filter (without success)
  79. Cannot Remove Title Reply from Custom Comment Template for Signup Page
  80. comment just attachment .. reply just text … can I do that?
  81. Custom sort comments with select form
  82. Edit Comments Fields
  83. Same comment section on every page
  84. comment form code redirect to wp_comments_post.php with blank page
  85. Update post “A” on comment submition on post “B”
  86. Upload avatar for post comment
  87. How to display replies to his comments in user profile of current user
  88. reply comment below the comment box without reload page
  89. Comment author profile image
  90. Force to show all fields in comment forms to the logged-in users
  91. Top rated posts Average rating issue
  92. Comment Form Fields when user logged in
  93. Need to output comment_form() function inside a foreach loop
  94. Author name length character limit?
  95. Check if comment author has url
  96. How to make comment reply available only for login members of a certain user roles only?
  97. How add custom text under comment form
  98. Delete comments function
  99. How to call out the date of user’s first comment?
  100. How to pass settings to comment_form() if theme only uses comments_template()?
Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)