diff --git a/TranslatorCpp/Languages/English.h b/TranslatorCpp/Languages/English.h
index 2e16697..f28f6fd 100644
--- a/TranslatorCpp/Languages/English.h
+++ b/TranslatorCpp/Languages/English.h
@@ -110,4 +110,12 @@ struct English : public ENGLISH_BASE
 			wt == word_type::pronoun ||
 			wt == verb;
 	}
+
+	static bool should_capitalize(const translator::word_form<English> &w)
+	{
+		if (w.p_dw->wordtype == word_type::pronoun && w.word == "i")
+			return true;
+
+		return false;
+	}
 };
\ No newline at end of file
diff --git a/TranslatorCpp/Languages/Serbian.h b/TranslatorCpp/Languages/Serbian.h
index 6cb98fd..9aea42d 100644
--- a/TranslatorCpp/Languages/Serbian.h
+++ b/TranslatorCpp/Languages/Serbian.h
@@ -153,4 +153,9 @@ struct Serbian : public SERBIAN_BASE
 			wt == word_type::придев ||
 			wt == word_type::прилог;
 	}
+
+	static bool should_capitalize(const translator::word_form<Serbian> &w)
+	{
+		return false;
+	}
 };
\ No newline at end of file
diff --git a/TranslatorCpp/Parse.cpp b/TranslatorCpp/Parse.cpp
index bce4817..2ad8e88 100644
--- a/TranslatorCpp/Parse.cpp
+++ b/TranslatorCpp/Parse.cpp
@@ -68,6 +68,7 @@ int main(int argc, char *argv[])
 		if (stLang == "SR")
 		{
 			map<int, wstring> sents;
+			setlocale(LC_ALL, "");
 			generate_random_sentences<Serbian>(sents, seed);
 			set_wide();
 			for (auto const &pair : sents)
@@ -126,4 +127,27 @@ int main(int argc, char *argv[])
 
 	cerr << "Unrecognized command" << endl;
 	return -1;
+}
+
+char translator::capitalize(char c)
+{
+	return toupper(c);
+}
+
+wchar_t translator::capitalize(wchar_t c)
+{
+	wchar_t upper = towupper(c);
+	return upper;
+}
+
+void translator::to_lower(basic_string<char>& s)
+{
+	for (basic_string<char>::iterator p = s.begin(); p != s.end(); ++p)
+		*p = tolower(*p);
+}
+
+void translator::to_lower(basic_string<wchar_t>& s)
+{
+	for (basic_string<wchar_t>::iterator p = s.begin(); p != s.end(); ++p)
+		*p = towlower(*p);
 }
\ No newline at end of file
diff --git a/TranslatorCpp/language.h b/TranslatorCpp/language.h
index de3f301..12db1c2 100644
--- a/TranslatorCpp/language.h
+++ b/TranslatorCpp/language.h
@@ -68,6 +68,10 @@ namespace translator
 		}
 	}
 
+	void to_lower(basic_string<char>& s);
+
+	void to_lower(basic_string<wchar_t>& s);
+
 	template <typename Language, typename letter = Language::letter, typename string_t = Language::string_t>
 	bool parse(typename Language::string_t s)
 	{
@@ -81,6 +85,10 @@ namespace translator
 
 		parsing_triangle<std::vector<parsing_node<Language>>> pt(vs.size());
 
+		// Lowercase all the words
+		for (auto &word : vs)
+			to_lower(word);
+
 		// Lexical analysis
 		for (unsigned int i = 0; i < vs.size(); i++)
 		{
diff --git a/TranslatorCpp/random_sentence.h b/TranslatorCpp/random_sentence.h
index edfdd72..77e0bd3 100644
--- a/TranslatorCpp/random_sentence.h
+++ b/TranslatorCpp/random_sentence.h
@@ -5,6 +5,18 @@
 
 namespace translator
 {
+	char capitalize(char c);
+
+	wchar_t capitalize(wchar_t c);
+
+	template<typename string_t>
+	const string_t capitalize_string(const string_t& st)
+	{
+		string_t copy = st;
+		copy[0] = capitalize(copy[0]);
+		return copy;
+	}
+
 	template<typename Language>
 	const rule<Language>& get_random_rule(std::default_random_engine& device, typename Language::word_type wt = Language::Sentence)
 	{
@@ -144,23 +156,24 @@ namespace translator
 			}
 		}
 
-		string_t ToString() const
+		string_t ToString(bool first_word=false) const
 		{
 			switch (t)
 			{
 			case RNode::string:
-				return st;
+				return first_word ? capitalize_string(st) : st;
 			case RNode::word:
 			{
 				const word_form<Language>& w = p_dw->find_word_form(am);
-				return w.word;
+				return first_word || Language::should_capitalize(w) ? capitalize_string(w.word) : w.word;
 			}
 			case RNode::node:
 			{
 				string_t stSum;
 				for (auto &child : children)
 				{
-					stSum += child.ToString();
+					stSum += child.ToString(first_word);
+					first_word = false;
 					stSum += string_t::value_type(' ');
 				}
 				return stSum.substr(0, stSum.size() - 1);
@@ -184,6 +197,6 @@ namespace translator
 
 		RNode<Language> node(r, device);
 		node.consolidate_attributes(device);
-		return node.ToString();
+		return node.ToString(true);
 	}
 }
\ No newline at end of file