diff --git a/tests/co19/co19-co19.status b/tests/co19/co19-co19.status
index 8970fe80a20..32c17f0275e 100644
--- a/tests/co19/co19-co19.status
+++ b/tests/co19/co19-co19.status
@@ -43,6 +43,12 @@ Language/Functions/syntax_t03: Skip # Triple shift is not implemented yet
 LanguageFeatures/Subtyping/static/tests/left_bottom_A01_t02: Skip # Type aliases are not supported by analyzer
 LanguageFeatures/Subtyping/static/tests/left_bottom_A01_t04: Skip # Type aliases are not supported by analyzer
 LanguageFeatures/Subtyping/static/tests/left_bottom_A01_t06: Skip # Type aliases are not supported by analyzer
+LanguageFeatures/nnbd/Least-greatest-closure/nonfunction_typedef/nonfunction_dynamic_t01: Skip # Type aliases are not fully supported by analyzer yet
+LanguageFeatures/nnbd/Least-greatest-closure/nonfunction_typedef/nonfunction_dynamic_t02: Skip # Type aliases are not fully supported by analyzer yet
+LanguageFeatures/nnbd/Least-greatest-closure/nonfunction_typedef/nonfunction_dynamic_t03: Skip # Type aliases are not fully supported by analyzer yet
+LanguageFeatures/nnbd/Least-greatest-closure/nonfunction_typedef/nonfunction_static_t01: Skip # Type aliases are not fully supported by analyzer yet
+LanguageFeatures/nnbd/Least-greatest-closure/nonfunction_typedef/nonfunction_static_t02: Skip # Type aliases are not fully supported by analyzer yet
+LanguageFeatures/nnbd/Least-greatest-closure/nonfunction_typedef/nonfunction_static_t03: Skip # Type aliases are not fully supported by analyzer yet
 
 [ $compiler == fasta ]
 Language/Classes/Superclasses/Inheritance_and_Overriding/inheritance_t10: Skip # Type aliases are not fully implemented
diff --git a/tests/co19/co19-dart2js.status b/tests/co19/co19-dart2js.status
index 6bb52593bbf..1fe42fee162 100644
--- a/tests/co19/co19-dart2js.status
+++ b/tests/co19/co19-dart2js.status
@@ -21,6 +21,23 @@ Language/Libraries_and_Scripts/Scripts/main_optional_parameters_t01: SkipByDesig
 Language/Libraries_and_Scripts/Scripts/main_optional_parameters_t03: SkipByDesign # https://github.com/dart-lang/co19/issues/952
 Language/Metadata/before*: Skip # dart:mirrors not supported https://github.com/dart-lang/co19/issues/523.
 Language/Reference/Operator_Precedence/precedence_15_unary_prefix_t08: SkipByDesign # binary '~' produces different results in JavaScript and Dart
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A01_t01: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A01_t02: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A01_t03: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A02_t01: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A02_t04: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A03_t01: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A03_t02: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A03_t03: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A03_t04: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A03_t06: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A04_t01: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A04_t02: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A05_t01: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A05_t02: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/static_analysis_external_A05_t03: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/syntax_A01_t03: SkipByDesign # External variables are not supported by dart2js
+LanguageFeatures/Abstract-external-fields/syntax_A02_t03: SkipByDesign # External variables are not supported by dart2js
 LibTest/core/DateTime/DateTime.fromMicrosecondsSinceEpoch_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
 LibTest/core/DateTime/microsecond_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
 LibTest/core/DateTime/microsecondsSinceEpoch_A01_t01: SkipByDesign # microseconds are not supported in JavaScript