diff --git a/src/TgBotLib/Methods/SendMessage.php b/src/TgBotLib/Methods/SendMessage.php
index cf0c576..95ddd7d 100644
--- a/src/TgBotLib/Methods/SendMessage.php
+++ b/src/TgBotLib/Methods/SendMessage.php
@@ -6,14 +6,19 @@
     use TgBotLib\Abstracts\Method;
     use TgBotLib\Bot;
     use TgBotLib\Enums\Methods;
+    use TgBotLib\Enums\Types\ParseMode;
+    use TgBotLib\Interfaces\ObjectTypeInterface;
+    use TgBotLib\Objects\LinkPreviewOptions;
     use TgBotLib\Objects\Message;
+    use TgBotLib\Objects\MessageEntity;
+    use TgBotLib\Objects\ReplyParameters;
 
     class SendMessage extends Method
     {
         /**
          * @inheritDoc
          */
-        public static function execute(Bot $bot, array $parameters = []): Message
+        public static function execute(Bot $bot, array $parameters=[]): Message
         {
             if(!isset($parameters['chat_id']))
             {
@@ -25,9 +30,51 @@
                 throw new InvalidArgumentException('text is required');
             }
 
+            if(isset($parameters['parse_mode']) && $parameters['parse_mode'] instanceof ParseMode)
+            {
+                $parameters['parse_mode'] = $parameters['parse_mode']->value;
+            }
+
+            if(isset($parameters['entities']) && is_array($parameters['entities']))
+            {
+                $entities = [];
+
+                foreach($parameters['entities'] as $entity)
+                {
+                    if($entity instanceof MessageEntity)
+                    {
+                        $entities[] = $entity->toArray();
+                    }
+                    else
+                    {
+                        $entities[] = $entity;
+                    }
+                }
+
+                $parameters['entities'] = $entities;
+            }
+
+            if(isset($parameters['link_preview_options']) && $parameters['link_preview_options'] instanceof LinkPreviewOptions)
+            {
+                $parameters['link_preview_options'] = $parameters['link_preview_options']->toArray();
+            }
+
+            if(isset($parameters['reply_parameters']) && $parameters['reply_parameters'] instanceof ReplyParameters)
+            {
+                $parameters['reply_parameters'] = $parameters['reply_parameters']->toArray();
+            }
+
+            if(isset($parameters['reply_markup']) && $parameters['reply_markup'] instanceof ObjectTypeInterface)
+            {
+                $parameters['reply_markup'] = $parameters['reply_markup']->toArray();
+            }
+
             return Message::fromArray(self::executeCurl(self::buildPost($bot, Methods::SEND_MESSAGE->value, $parameters)));
         }
 
+        /**
+         * @inheritDoc
+         */
         public static function getRequiredParameters(): ?array
         {
             return [
@@ -36,11 +83,22 @@
             ];
         }
 
+        /**
+         * @inheritDoc
+         */
         public static function getOptionalParameters(): ?array
         {
             return [
                 'business_connection_id',
+                'message_thread_id',
                 'parse_mode',
+                'entities',
+                'link_preview_options',
+                'disable_notification',
+                'protect_content',
+                'message_effect_id',
+                'reply_parameters',
+                'reply_markup'
             ];
         }
     }
\ No newline at end of file