diff --git a/04_conditions/if.v b/04_conditions/if.v
new file mode 100644
index 0000000..56ffc7c
--- /dev/null
+++ b/04_conditions/if.v
@@ -0,0 +1,49 @@
+
+
+pub fn main() 
+{
+	mut a := 10
+	mut b := 20
+
+	// Simple if structure
+	if a < b 
+	{
+		println("${a} é menor do que ${b}")
+	}else if(a > b)
+	{
+		println("${a} é maior do que ${b}")
+	}else
+	{
+		println("${a} é igual a ${b}")
+	}
+
+	num := 777
+
+	s := if num % 2 == 0 { 'even' } else { 'odd' }
+	println(s)
+
+
+	// ================================================================ //
+
+	m := {
+		'foor' : 'bar'
+	}
+
+	if v := m['foo'] 
+	{
+		println(v)
+	}else
+	{
+		println('not found')
+	}
+
+	if c := res() 
+	{
+		println(c)
+	}
+}
+
+fn res() !int 
+{
+	return 42
+}
\ No newline at end of file
diff --git a/04_conditions/main.v b/04_conditions/main.v
deleted file mode 100644
index bc4e457..0000000
--- a/04_conditions/main.v
+++ /dev/null
@@ -1,3 +0,0 @@
-pub fn main() {
-	println('oi')
-}
\ No newline at end of file
diff --git a/04_conditions/match.v b/04_conditions/match.v
new file mode 100644
index 0000000..39a5f15
--- /dev/null
+++ b/04_conditions/match.v
@@ -0,0 +1,4 @@
+pub fn main() 
+{
+	println('oi')
+}
\ No newline at end of file
diff --git a/05_conditions/if.v b/05_conditions/if.v
new file mode 100644
index 0000000..48a15bf
--- /dev/null
+++ b/05_conditions/if.v
@@ -0,0 +1,88 @@
+pub fn main() 
+{
+	mut a := 10
+	mut b := 20
+
+	// Simple if structure
+	if a < b 
+	{
+		println("${a} é menor do que ${b}")
+	}else if a > b
+	{
+		println("${a} é maior do que ${b}")
+	}else
+	{
+		println("${a} é igual a ${b}")
+	}
+
+	num := 777
+
+	s := if num % 2 == 0 { 'even' } else { 'odd' }
+	println(s)
+
+
+	// ================================================================ //
+
+	m := {
+		'foo' : 'bar'
+	}
+
+	if v := m['foo'] 
+	{
+		println(v)
+	}else
+	{
+		println('not found')
+	}
+
+	if c := res() 
+	{
+		println(c)
+	}
+
+	// ================================================================ //
+
+	mut arr := [User{"John"}]
+
+	u_name := if v := arr[0]
+	{
+		v.name
+	}else
+	{
+		"Unamed"
+	}
+
+	println(u_name)
+
+	x := Alphabet(Abc{"Test"})
+
+	if x is Abc 
+	{
+		println(x)
+	}else if x !is Abc 
+	{
+		println("Not Abc")
+	}
+
+}
+
+type Alphabet = Abc | Xyz
+
+struct Abc 
+{
+	val string
+}
+
+struct Xyz 
+{
+	foo string
+}
+
+struct User {
+	name string
+}
+
+fn res() !int 
+{
+	return 42
+}
\ No newline at end of file
diff --git a/05_conditions/in.v b/05_conditions/in.v
new file mode 100644
index 0000000..f5dc5c4
--- /dev/null
+++ b/05_conditions/in.v
@@ -0,0 +1,42 @@
+pub fn main() {
+	
+	nums := [2,4,5]
+	println(2 in nums) // true
+	println(1 !in nums) // true
+	println(6 in nums) // false
+
+	// ===================================================== //
+
+	m := {
+		'one' : 1
+		'two' : 2
+	}
+
+	println('one' in m) // true
+	println('two' !in m) // false
+	println('three' in m) // false
+
+	// ===================================================== //
+
+	parse := Parse{}
+
+	if parse.token == .plus || parse.token == .minus || parse.token == .div || parse.token == .mult {
+		println('yes')
+	}
+
+	if parse.token in [.plus, .minus, .div, .mult] {
+		println('yes')
+	}
+
+}
+
+struct Parse {
+	token Token
+}
+
+enum Token {
+	plus
+	minus
+	div
+	mult
+}
\ No newline at end of file
diff --git a/05_conditions/match.v b/05_conditions/match.v
new file mode 100644
index 0000000..74feb0f
--- /dev/null
+++ b/05_conditions/match.v
@@ -0,0 +1,73 @@
+pub fn main() 
+{
+	os := 'win32'
+
+	match os {
+		'darwin' { println('macos') }
+		'linux'  { println('Linux') }
+		'win32'  { println('Windows') }
+		else     { println('Unknown operatin system') }
+	}
+
+	// =========================================================== //
+
+	match true {
+		2 == 3 { println('true') }
+		2 % 4 == 0 { println('true') }
+		2 > 4 { println('true') }
+		else { println('false') }
+	}
+
+	match false {
+		2 == 3 { println('false') }
+		2 % 4 == 0 { println('false') }
+		2 > 4 { println('false') }
+		else { println('false') }
+	}
+
+	// =========================================================== //
+
+	mut color := Color.red
+	println(is_red_or_blue(color))
+
+	// =========================================================== //
+
+	c := `v`
+
+	typ := match c {
+		`0`...`9` { "digit" }
+		`A`...`Z` { "uppercase" }
+		`a`...`z` { "lowercase" }
+		else { "other" }
+	}
+
+	println(typ)
+
+	// =========================================================== //
+
+	d := 2
+
+	num := match d {
+		start...end { 1000 }
+		else { 0 }
+	}
+
+	println(num)
+}
+
+const start := 1
+const end := 10
+
+fn is_red_or_blue(c Color) bool
+{
+	return match c {
+		.red, .blue { true }
+		.green { false }
+	}
+}
+
+enum Color {
+	blue
+	red 
+	green
+}
\ No newline at end of file