diff --git a/aqt/installer.py b/aqt/installer.py
index 3b4aaa1..d574958 100644
--- a/aqt/installer.py
+++ b/aqt/installer.py
@@ -213,6 +213,21 @@ class Cli:
     def _check_qt_arg_version_offline(self, version):
         return version in Settings.available_offline_installer_version
 
+    def _warning_unknown_qt_version(self, qt_version: str) -> str:
+        return self._warning_on_bad_combination(f'Qt version "{qt_version}"')
+
+    def _warning_unknown_target_arch_combo(self, args: List[str]) -> str:
+        return self._warning_on_bad_combination(f"target combination \"{' '.join(args)}\"")
+
+    def _warning_unexpected_modules(self, unexpected_modules: List[str]) -> str:
+        return self._warning_on_bad_combination(f"modules {unexpected_modules}")
+
+    def _warning_on_bad_combination(self, combo_message: str) -> str:
+        return (
+            f"Specified {combo_message} did not exist when this version of aqtinstall was released. "
+            "This may not install properly, but we will try our best."
+        )
+
     def _set_sevenzip(self, external):
         sevenzip = external
         if sevenzip is None:
@@ -389,23 +404,14 @@ class Cli:
         auto_desktop_archives: List[QtPackage] = get_auto_desktop_archives()
 
         if not self._check_qt_arg_versions(qt_version):
-            self.logger.warning(
-                f'Specified Qt version "{qt_version}" did not exist when this version of aqtinstall was released. '
-                "This may not install properly, but we will try our best."
-            )
+            self.logger.warning(self._warning_unknown_qt_version(qt_version))
         if not self._check_qt_arg_combination(qt_version, os_name, target, arch):
-            self.logger.warning(
-                f'Specified target combination "{os_name} {target} {arch}" did not exist when this version of '
-                "aqtinstall was released. This may not install properly, but we will try our best."
-            )
+            self.logger.warning(self._warning_unknown_target_arch_combo([os_name, target, arch]))
         all_extra = True if modules is not None and "all" in modules else False
         if not all_extra:
             unexpected_modules = self._select_unexpected_modules(qt_version, modules)
             if unexpected_modules:
-                self.logger.warning(
-                    f"Specified modules {unexpected_modules} did not exist when this version of aqtinstall was released. "
-                    "This may not install properly, but we will try our best."
-                )
+                self.logger.warning(self._warning_unexpected_modules(unexpected_modules))
 
         qt_archives: QtArchives = retry_on_bad_connection(
             lambda base_url: QtArchives(
@@ -475,10 +481,7 @@ class Cli:
         archives = args.archives
         all_extra = True if modules is not None and "all" in modules else False
         if not self._check_qt_arg_versions(qt_version):
-            self.logger.warning(
-                f'Specified Qt version "{qt_version}" did not exist when this version of aqtinstall was released. '
-                "This may not install properly, but we will try our best."
-            )
+            self.logger.warning(self._warning_unknown_qt_version(qt_version))
 
         srcdocexamples_archives: SrcDocExamplesArchives = retry_on_bad_connection(
             lambda base_url: SrcDocExamplesArchives(
@@ -575,10 +578,7 @@ class Cli:
 
         for arch in archs:
             if not self._check_tools_arg_combination(os_name, tool_name, arch):
-                self.logger.warning(
-                    f'Specified target combination "{os_name} {tool_name} {arch}" did not exist when this version of '
-                    "aqtinstall was released. This may not install properly, but we will try our best."
-                )
+                self.logger.warning(self._warning_unknown_target_arch_combo([os_name, tool_name, arch]))
 
             tool_archives: ToolArchives = retry_on_bad_connection(
                 lambda base_url: ToolArchives(