diff --git a/packages/testing/src/execution_testing/base_types/base_types.py b/packages/testing/src/execution_testing/base_types/base_types.py
index 38d8b2c851..c389973fde 100644
--- a/packages/testing/src/execution_testing/base_types/base_types.py
+++ b/packages/testing/src/execution_testing/base_types/base_types.py
@@ -119,7 +119,7 @@ def _get_multiplier(unit: str) -> int:
 
 
 class HexNumber(Number):
-    """Class that helps represent an hexadecimal numbers in tests."""
+    """Class that helps represent hexadecimal numbers in tests."""
 
     def __str__(self) -> str:
         """Return the string representation of the number."""
diff --git a/packages/testing/src/execution_testing/base_types/composite_types.py b/packages/testing/src/execution_testing/base_types/composite_types.py
index f6aa5fc3cb..c78c1e0ee9 100644
--- a/packages/testing/src/execution_testing/base_types/composite_types.py
+++ b/packages/testing/src/execution_testing/base_types/composite_types.py
@@ -244,7 +244,7 @@ def store_next(
         hint: str = "",
     ) -> StorageKeyValueType:
         """
-        Store a value in the storage and returns the key where the value is
+        Store a value in the storage and return the key where the value is
         stored.
 
         Increments the key counter so the next time this function is called,
diff --git a/packages/testing/src/execution_testing/base_types/mixins.py b/packages/testing/src/execution_testing/base_types/mixins.py
index f6005979ad..7199bb9d40 100644
--- a/packages/testing/src/execution_testing/base_types/mixins.py
+++ b/packages/testing/src/execution_testing/base_types/mixins.py
@@ -78,7 +78,7 @@ def __repr_args__(self) -> Any:
 
         # Convert field values based on their type. This ensures consistency
         # between JSON and Python object representations. Should a custom
-        # `__repr__` be needed for a specific type, it can added in the match
+        # `__repr__` be needed for a specific type, it can be added in the match
         # statement below. Otherwise, the default string representation is
         # used.
         repr_attrs: List[Tuple[str, Any]] = []
diff --git a/repo_subpaths_for_grammar_check.md b/repo_subpaths_for_grammar_check.md
index b1af341e9b..fea9f47f03 100644
--- a/repo_subpaths_for_grammar_check.md
+++ b/repo_subpaths_for_grammar_check.md
@@ -26,7 +26,7 @@ Status legend: `[ ]` pending, `[~]` in progress, `[x]` complete
 - [x] `packages/testing/src/execution_testing/specs/**/*.py` (~28 files)
 - [x] `packages/testing/src/execution_testing/fixtures/**/*.py` (~16 files)
 - [x] `packages/testing/src/execution_testing/client_clis/**/*.py` (~21 files)
-- [ ] `packages/testing/src/execution_testing/base_types/**/*.py` (~15 files)
+- [x] `packages/testing/src/execution_testing/base_types/**/*.py` (~15 files)
 - [ ] `packages/testing/src/execution_testing/forks/**/*.py` (~13 files)
 - [ ] `packages/testing/src/execution_testing/tools/**/*.py`, `exceptions/**/*.py` (~24 files)
 - [ ] `packages/testing/src/execution_testing/vm/**/*.py`, `rpc/**/*.py`, `config/**/*.py` (~17 files)