diff --git a/06_repetitions/for.v b/06_repetitions/for.v
index db85909..753cade 100644
--- a/06_repetitions/for.v
+++ b/06_repetitions/for.v
@@ -28,5 +28,123 @@ pub fn main() {
 
 	// ==================================== //
 
-	
-}
\ No newline at end of file
+	nums := [1,2,3,4,5]
+	iter := SquareIterator {
+		arr : nums
+	}
+
+	for squared in iter {
+		println(squared)
+	}
+
+	// ==================================== //
+
+	m := {
+		'one' : 1,
+		'two' : 2
+	}
+
+	for key, value in m {
+		println('${key} -> ${value}')
+	}
+
+	// ==================================== //
+
+	for key, _ in m {
+		println("${key}")
+	}
+
+	for _, value in m {
+		println("${value}")
+	}
+
+	// ==================================== //
+
+	for i in 0..5 {
+		print('${i} ')
+	}
+
+	// ==================================== //
+
+	mut sum := 0
+	mut i := 0
+
+	for i <= 100 {
+		sum += i
+		i++
+	}
+
+	println(sum)
+
+	// ==================================== //
+
+	mut num := 0
+
+	for {
+		num += 2
+
+		if num >= 10 {
+			break
+		}
+	}
+
+	println(num)
+
+	// ==================================== //
+
+	for k := 0; k < 10; k += 2 {
+		if k == 6 {
+			continue
+		}
+
+		println(k)
+	}
+
+	// ==================================== //
+
+	outer: for j := 4; true; j++ { 
+		println(j)
+
+		for {
+			if j < 7 {
+				continue outer
+			}else {
+				break outer
+			}
+		}
+	}
+
+	// ==================================== //
+
+}
+
+
+struct SquareIterator {
+	arr []int
+
+
+mut:
+	idx int
+}
+
+fn (mut iter SquareIterator) next() ?int{
+	if iter.idx >= iter.arr.len {
+		return none
+	}else {
+		defer {
+			iter.idx++
+		}
+		return iter.arr[iter.idx]
+	}
+}
+
+//fn (mut iter SquareIterator) next() ?int {
+//	if iter.idx >= iter.arr.len {
+//		return none
+//	}
+//	defer {
+//		iter.idx++
+//	}
+//
+//	return iter.arr[iter.idx] * iter.arr[iter.idx]
+//}
\ No newline at end of file