diff --git a/learning-irregular-verbs-in-English.el b/learning-irregular-verbs-in-English.el
index 24ad3d0..6872ad6 100644
--- a/learning-irregular-verbs-in-English.el
+++ b/learning-irregular-verbs-in-English.el
@@ -57,25 +57,140 @@
 		 ("hear" "heard" "heard")
 		 ("hide" "hid" "hidden")
 		 ("hit" "hit" "hit")))
-	(verbs-learned '())
+	(buffer-name "*Learning irregular verbs in English*")
+	(verb-to-learn-infinitive nil)
+	(verb-to-learn-simple-past nil)
+	(verb-to-learn-past-participle nil)
 	(emoji-valid "✅")
 	(emoji-error "👎")
 	(widget-title nil)
-	(text-title "Learning irregular verbs in English")
-	(widget-item-first-verb nil)
-	(widget-field-first-simple-past nil)
-	(widget-field-first-past-participle nil)
+	(text-title " 🧑‍🎓 Learning irregular verbs in English 🇬🇧")
+	(widget-item-verb nil)
+	(widget-field-simple-past nil)
+	(widget-field-past-participle nil)
 	(text-button-check "Check")
-	(widget-button-first nil)
+	(widget-button nil)
 	(widget-message-success nil)
 	(text-success "Congratulations!")
 	(widget-button-quit nil)
 	(text-button-quit "Quit")
 	(widget-button-replay nil)
 	(text-button-replay "New challenge")
-	))
-  )
+	)
+    ;; Imports
+    (require 'widget)
+    (eval-when-compile
+      (require 'wid-edit))
+
+    ;; Functions
+
+    (defun set-verb-to-learn ()
+      "Set the verb to learn."
+      (let ((verbs-random (nth (random (length verbs)) verbs)))
+	(setq verb-to-learn-infinitive (nth 0 verbs-random))
+	(setq verb-to-learn-simple-past (nth 1 verbs-random))
+	(setq verb-to-learn-past-participle (nth 2 verbs-random))))
+
+    (defun format-value-infinitive (value)
+      "Format the value of the infinitive."
+      (format "Infinitive      ➡️ %s" value))
+
+    (defun format-value-simple-past (value)
+      "Format the value of the simple past."
+      (format "Simple past ➡️ %s %s" value (if
+					      (and
+					       (string= value verb-to-learn-simple-past)
+					       (not (string= value "")))
+					      emoji-valid emoji-error)))
+
+    (defun start-or-replay ()
+      "Start o replay challenge."
+      (interactive)
+      ;; Get a new verb
+      (set-verb-to-learn)
+      ;; Show the verb in infinitive
+      (widget-value-set widget-item-verb (format-value-infinitive verb-to-learn-infinitive))
+
+      ;; Clear the fields
+      (widget-value-set widget-field-simple-past "")
+      (widget-value-set widget-field-past-participle "")
+      ;; Focus on the first field
+      (widget-forward 2))
+
+    (defun kill-app ()
+      "Kill the application."
+      (interactive)
+      (kill-buffer buffer-name))
+
+    (defun main-layout ()
+      "Make widgets for the main layout."
+      (interactive)
+      ;; Create the buffer
+      (switch-to-buffer buffer-name)
+      ;; Clear the buffer
+      (kill-all-local-variables)
+      (let ((inhibit-read-only t))
+	(erase-buffer))
+      (remove-overlays)
+      ;; Create the widgets
+      ;; Title
+      (insert (propertize (format "\n%s\n\n" text-title) 'face '(:height 1.2 :weight bold)))
+      ;; Verb in infinitive
+      (setq widget-item-verb (widget-create 'item
+					    :value ""))
+      ;; Separator
+      (insert "\nSimple past     ➡️ ")
+      ;; Simple past
+      (setq widget-field-simple-past (widget-create 'editable-field
+						    :size 8
+						    :help-echo "Type a Simple past"
+						    ))
+      ;; Separator
+      (insert "\n\nPast participle ➡️ ")
+      ;; Past participle
+      (setq widget-field-past-participle (widget-create 'editable-field
+							:size 8
+							:help-echo "Type a Past participle"))
+      ;; Separator
+      (insert "\n\n")
+      ;; Check button
+      (setq widget-button (widget-create 'push-button
+					 text-button-check))
+      ;; Separator
+      (insert "\n\n")
+      ;; Success message
+      (setq widget-message-success (widget-create 'item
+						  text-success
+						  ))
+      ;; Separator
+      (insert "\n  ")
+      ;; Replay button
+      (setq widget-button-replay (widget-create 'push-button
+						:size 20
+						:notify (lambda (&rest ignore)
+							  (start-or-replay))
+						text-button-replay))
+      ;; Separator
+      (insert "  ")
+      ;; Quit button
+      (setq widget-button-quit (widget-create 'push-button
+					      :size 20
+					      :notify (lambda (&rest ignore))
+					      text-button-quit))
+
+      ;; Display the buffer
+      (use-local-map widget-keymap)
+      (widget-setup))
+
+    ;; Keybindings
+    (define-key widget-keymap (kbd "q") 'kill-app)
+
+    ;; Init
+    (main-layout)
+    (start-or-replay)
+    ))
 
 (provide 'learning-irregular-verbs-in-English)
 
 ;;; learning-irregular-verbs-in-English.el ends here
+(learning-irregular-verbs-in-English)