diff --git a/dateparser/data/date_translation_data/sk.py b/dateparser/data/date_translation_data/sk.py
index 81ad72203..df71e31ba 100644
--- a/dateparser/data/date_translation_data/sk.py
+++ b/dateparser/data/date_translation_data/sk.py
@@ -68,7 +68,8 @@
     ],
     "wednesday": [
         "st",
-        "streda"
+        "streda",
+        "stredu"
     ],
     "thursday": [
         "št",
@@ -80,11 +81,13 @@
     ],
     "saturday": [
         "so",
-        "sobota"
+        "sobota",
+        "sobotu"
     ],
     "sunday": [
         "ne",
-        "nedeľa"
+        "nedeľa",
+        "nedeľu"
     ],
     "am": [
         "am"
@@ -165,6 +168,12 @@
         ],
         "in 1 year": [
             "budúci rok"
+        ],
+        "2 day ago": [
+            "predvčerom"
+        ],
+        "in 2 days": [
+            "pozajtra"
         ]
     },
     "relative-type-regex": {
@@ -206,41 +215,50 @@
         "in \\1 day": [
             "o (\\d+[.,]?\\d*) d",
             "o (\\d+[.,]?\\d*) deň",
-            "o (\\d+[.,]?\\d*) dní"
+            "o (\\d+[.,]?\\d*) dní",
+            "o (\\d+[.,]?\\d*) dni"
         ],
         "in \\1 hour": [
             "o (\\d+[.,]?\\d*) h",
             "o (\\d+[.,]?\\d*) hodinu",
-            "o (\\d+[.,]?\\d*) hodín"
+            "o (\\d+[.,]?\\d*) hodín",
+            "o (\\d+[.,]?\\d*) hodiny"
         ],
         "in \\1 minute": [
             "o (\\d+[.,]?\\d*) min",
             "o (\\d+[.,]?\\d*) minút",
-            "o (\\d+[.,]?\\d*) minútu"
+            "o (\\d+[.,]?\\d*) minútu",
+            "o (\\d+[.,]?\\d*) minúty"
         ],
         "in \\1 month": [
             "o (\\d+[.,]?\\d*) mes",
             "o (\\d+[.,]?\\d*) mesiac",
-            "o (\\d+[.,]?\\d*) mesiacov"
+            "o (\\d+[.,]?\\d*) mesiacov",
+            "o (\\d+[.,]?\\d*) mesiace"
         ],
         "in \\1 second": [
             "o (\\d+[.,]?\\d*) s",
             "o (\\d+[.,]?\\d*) sekundu",
-            "o (\\d+[.,]?\\d*) sekúnd"
+            "o (\\d+[.,]?\\d*) sekúnd",
+            "o (\\d+[.,]?\\d*) sekundy"
         ],
         "in \\1 week": [
             "o (\\d+[.,]?\\d*) týž",
             "o (\\d+[.,]?\\d*) týždeň",
-            "o (\\d+[.,]?\\d*) týždňov"
+            "o (\\d+[.,]?\\d*) týždňov",
+            "o (\\d+[.,]?\\d*) týždne"
         ],
         "in \\1 year": [
             "o (\\d+[.,]?\\d*) r",
             "o (\\d+[.,]?\\d*) rok",
-            "o (\\d+[.,]?\\d*) rokov"
+            "o (\\d+[.,]?\\d*) rokov",
+            "o (\\d+[.,]?\\d*) roky"
         ]
     },
     "locale_specific": {},
     "skip": [
+        "v",
+        "vo",
         " ",
         "'",
         ",",
@@ -253,5 +271,57 @@
         "]",
         "|",
         "，"
+    ],
+    "sentence_splitter_group": 1,
+    "ago": [
+        "pred"
+    ],
+    "in": [
+        "o",
+        "za"
+    ],
+    "simplifications": [
+        {
+            "pred sekundou": "pred 1 sekundou"
+        },
+        {
+            "pred minútou": "pred 1 minútou"
+        },
+        {
+            "pred hodinou": "pred 1 hodinou"
+        },
+        {
+            "pred týždňom": "pred 1 týždňom"
+        },
+        {
+            "pred mesiacom": "pred 1 mesiacom"
+        },
+        {
+            "pred rokom": "pred 1 rokom"
+        },
+        {
+            "pred pol rokom": "pred 6 mesiacmi"
+        },
+        {
+            "o sekundu": "o 1 sekundu"
+        },
+        {
+            "o minútu": "o 1 minútu"
+        },
+        {
+            "o hodinu": "o 1 hodinu"
+        },
+        {
+            "o týždeň": "o 1 týždeň"
+        },
+        {
+            "o mesiac": "o 1 mesiac"
+        },
+        {
+            "o rok": "o 1 rok"
+        },
+        {
+            "o pol roka": "o 6 mesiacov"
+        }
     ]
 }
diff --git a/dateparser_data/supplementary_language_data/date_translation_data/sk.yaml b/dateparser_data/supplementary_language_data/date_translation_data/sk.yaml
new file mode 100644
index 000000000..a1eae8834
--- /dev/null
+++ b/dateparser_data/supplementary_language_data/date_translation_data/sk.yaml
@@ -0,0 +1,54 @@
+skip: ["v", "vo"]
+
+sentence_splitter_group : 1
+
+wednesday:
+    - stredu
+saturday:
+    - sobotu
+sunday:
+    - nedeľu
+
+ago:
+    - pred
+in:
+    - o
+    - za
+
+relative-type:
+    2 day ago:
+        - predvčerom
+    in 2 days:
+        - pozajtra
+
+relative-type-regex:
+    in \1 day:
+        - o (\d+[.,]?\d*) dni
+    in \1 hour:
+        - o (\d+[.,]?\d*) hodiny
+    in \1 minute:
+        - o (\d+[.,]?\d*) minúty
+    in \1 month:
+        - o (\d+[.,]?\d*) mesiace
+    in \1 second:
+        - o (\d+[.,]?\d*) sekundy
+    in \1 week:
+        - o (\d+[.,]?\d*) týždne
+    in \1 year:
+        - o (\d+[.,]?\d*) roky
+
+simplifications:
+    - pred sekundou: pred 1 sekundou
+    - pred minútou: pred 1 minútou
+    - pred hodinou: pred 1 hodinou
+    - pred týždňom: pred 1 týždňom
+    - pred mesiacom: pred 1 mesiacom
+    - pred rokom: pred 1 rokom
+    - pred pol rokom: pred 6 mesiacmi
+    - o sekundu: o 1 sekundu
+    - o minútu: o 1 minútu
+    - o hodinu: o 1 hodinu
+    - o týždeň: o 1 týždeň
+    - o mesiac: o 1 mesiac
+    - o rok: o 1 rok
+    - o pol roka: o 6 mesiacov
diff --git a/tests/test_freshness_date_parser.py b/tests/test_freshness_date_parser.py
index b2c72c845..bbbca6bf9 100644
--- a/tests/test_freshness_date_parser.py
+++ b/tests/test_freshness_date_parser.py
@@ -530,6 +530,14 @@ def test_relative_past_dates_with_time_as_period(self, date_string, ago, period)
         param("මිනිත්තු 6කට පෙර", ago={'minutes': 6}, period='day'),
         # sk
         param("pred 20 hodinami 45 min", ago={'hours': 20, 'minutes': 45}, period='day'),
+        param('dnes', ago={'days': 0}, period='day'),
+        param('včera', ago={'days': 1}, period='day'),
+        param('predvčerom', ago={'days': 2}, period='day'),
+        param('pred 2 hodinami', ago={'hours': 2}, period='day'),
+        param('pred rokom', ago={'years': 1}, period='year'),
+        param('pred týždňom', ago={'weeks': 1}, period='week'),
+        param('pred 3 dňami', ago={'days': 3}, period='day'),
+        param('pred hodinou', ago={'hours': 1}, period='day'),
         # sl
         param("pred 15 tednom 10 dan", ago={'weeks': 15, 'days': 10}, period='day'),
         # sq
diff --git a/tests/test_languages.py b/tests/test_languages.py
index d679becf5..34e20e70d 100644
--- a/tests/test_languages.py
+++ b/tests/test_languages.py
@@ -738,6 +738,10 @@ def setUp(self):
         # sk
         param('sk', "15 marec 1987 utorok", "15 march 1987 tuesday"),
         param('sk', "streda 17 mája 2003", "wednesday 17 may 2003"),
+        param('sk', "o 2 mesiace", "in 2 month"),
+        param('sk', "o týždeň", "in 1 week"),
+        param('sk', "predvčerom", "2 day ago"),
+        param('sk', "v sobotu", " saturday"),
 
         # sl
         param('sl', "12 junij 2003 petek 10:09 pop", "12 june 2003 friday 10:09 pm"),