diff --git a/lib/domain/language_check_service.dart b/lib/domain/language_check_service.dart
index ef0db9f..16843d9 100644
--- a/lib/domain/language_check_service.dart
+++ b/lib/domain/language_check_service.dart
@@ -1,6 +1,6 @@
 import 'package:languagetool_textfield/domain/mistake.dart';
 
-/// Base language check service.
+/// A base language check service.
 abstract class LanguageCheckService {
   /// Creates a new instance of the [LanguageCheckService] class.
   const LanguageCheckService();
diff --git a/lib/domain/mistake.dart b/lib/domain/mistake.dart
index 4d15317..ecbd3a8 100644
--- a/lib/domain/mistake.dart
+++ b/lib/domain/mistake.dart
@@ -9,7 +9,7 @@ class Mistake {
   /// A position of the beginning of this mistake.
   final int offset;
 
-  /// Length of this mistake after the offset.
+  /// A length of this mistake after the offset.
   final int length;
 
   /// A list of suggestions for replacing this mistake.
@@ -17,7 +17,7 @@ class Mistake {
   /// Sorted by probability.
   final List<String> replacements;
 
-  /// Creates a new instance of the [Mistake] class
+  /// Creates a new instance of the [Mistake] class.
   const Mistake({
     required this.message,
     required this.type,
diff --git a/lib/implementations/debounce_lang_tool_service.dart b/lib/implementations/debounce_lang_tool_service.dart
index d6ba1f8..ed14755 100644
--- a/lib/implementations/debounce_lang_tool_service.dart
+++ b/lib/implementations/debounce_lang_tool_service.dart
@@ -2,15 +2,15 @@ import 'package:languagetool_textfield/domain/language_check_service.dart';
 import 'package:languagetool_textfield/domain/mistake.dart';
 import 'package:throttling/throttling.dart';
 
-/// Implementation of language check service with debouncing.
+/// A language check service with debouncing.
 class DebounceLangToolService extends LanguageCheckService {
-  /// Base language check service.
+  /// A base language check service.
   final LanguageCheckService baseService;
 
   /// A debouncing used to debounce the API calls.
   final Debouncing debouncing;
 
-  /// Implementation of language check service with debouncing.
+  /// Creates a new instance of the [DebounceLangToolService] class.
   DebounceLangToolService(
     this.baseService,
     Duration debouncingDuration,
diff --git a/lib/implementations/lang_tool_service.dart b/lib/implementations/lang_tool_service.dart
index c56a3f0..923b21c 100644
--- a/lib/implementations/lang_tool_service.dart
+++ b/lib/implementations/lang_tool_service.dart
@@ -2,12 +2,12 @@ import 'package:language_tool/language_tool.dart';
 import 'package:languagetool_textfield/domain/language_check_service.dart';
 import 'package:languagetool_textfield/domain/mistake.dart';
 
-/// Implementation of language check service with language tool service.
+/// An implementation of language check service with language tool service.
 class LangToolService extends LanguageCheckService {
-  /// Objects of this class are used to interact with LanguageTool API.
+  /// An instance of this class that is used to interact with LanguageTool API.
   final LanguageTool languageTool;
 
-  /// Implementation of language check service with language tool service.
+  /// Creates a new instance of the [LangToolService].
   const LangToolService(this.languageTool);
 
   @override
diff --git a/lib/implementations/throttling_lang_tool_service.dart b/lib/implementations/throttling_lang_tool_service.dart
index c4522b7..139358c 100644
--- a/lib/implementations/throttling_lang_tool_service.dart
+++ b/lib/implementations/throttling_lang_tool_service.dart
@@ -2,15 +2,16 @@ import 'package:languagetool_textfield/domain/language_check_service.dart';
 import 'package:languagetool_textfield/domain/mistake.dart';
 import 'package:throttling/throttling.dart';
 
-/// Implementation of language check service with throttling.
+/// A language check service with debouncing.
 class ThrottlingLangToolService extends LanguageCheckService {
-  /// Base language check service.
+  /// A base language check service that is used to interact
+  /// with the language check API.
   final LanguageCheckService baseService;
 
   /// A throttling used to throttle the API calls.
   final Throttling throttling;
 
-  /// Implementation of LanguageCheckService with throttling.
+  /// Creates a new instance of the [ThrottlingLangToolService] class.
   ThrottlingLangToolService(
     this.baseService,
     Duration throttlingDuration,
diff --git a/lib/presentation/language_tool_text_field.dart b/lib/presentation/language_tool_text_field.dart
index 2e8fb08..0652baf 100644
--- a/lib/presentation/language_tool_text_field.dart
+++ b/lib/presentation/language_tool_text_field.dart
@@ -1,18 +1,18 @@
 import 'package:flutter/material.dart';
 import 'package:languagetool_textfield/domain/language_check_service.dart';
 
-/// Widget for checking grammar errors.
+/// A TextField widget that checks the grammar using the given [langService]
 class LanguageToolTextField extends StatefulWidget {
-  /// Service for checking errors.
+  /// A service for checking errors.
   final LanguageCheckService langService;
 
-  /// The style to use for the text being edited.
+  /// A style to use for the text being edited.
   final TextStyle style;
 
-  /// Decoration of widget
+  /// A decoration of this [TextField].
   final InputDecoration decoration;
 
-  /// Will build custom errors based on state.
+  /// A builder function used to build errors.
   final Widget Function()? mistakeBuilder;
 
   /// Creates a widget that checks grammar errors.