diff --git a/uppsrc/ide/Debuggers/app.tpp/PDBExpressions$en-us.tpp b/uppsrc/ide/Debuggers/app.tpp/PDBExpressions$en-us.tpp
new file mode 100644
index 000000000..3a0067754
--- /dev/null
+++ b/uppsrc/ide/Debuggers/app.tpp/PDBExpressions$en-us.tpp
@@ -0,0 +1,37 @@
+topic "Supported operators";
+[2 $$0,0#00000000000000000000000000000000:Default]
+[i448;a25;kKO9;2 $$1,0#37138531426314131252341829483380:class]
+[l288;2 $$2,2#27521748481378242620020725143825:desc]
+[0 $$3,0#96390100711032703541132217272105:end]
+[H6;0 $$4,0#05600065144404261032431302351956:begin]
+[i448;a25;kKO9;2 $$5,0#37138531426314131252341829483370:item]
+[l288;a4;*@5;1 $$6,6#70004532496200323422659154056402:requirement]
+[l288;i1121;b17;O9;~~~.1408;2 $$7,0#10431211400427159095818037425705:param]
+[i448;b42;O9;2 $$8,8#61672508125594000341940100500538:tparam]
+[b42;2 $$9,9#13035079074754324216151401829390:normal]
+[{_}%EN-US 
+[s0; [@(0.0.255) 0x] prefix for hex (e.g. 0xfe)&]
+[s0; [@(0.0.255) 0] prefix for octal numbers (e.g. 0337)&]
+[s0; [@(0.0.255) `' `'] ASCII code for character (e.g. `'a`')&]
+[s0; [@(0.0.255) `::] can be used to specify scope&]
+[s0; [@(0.0.255) this] variable exists in methods&]
+[s0; &]
+[ {{3130:6870^@7 [s0; Operator]
+:: [s0; Note]
+::@2 [s0; [@(0.0.255) . `-> `[`]]]
+:: [s0; Postfix operators. `'.`' and `'`->`' are synonyms (work based 
+on actual context).]
+:: [s0; [@(0.0.255) `- `+ `* `& !]]
+:: [s0; Unary operators.]
+:: [s0; [@(0.0.255) `* / %]]
+:: [s0; Binary operators.]
+:: [s0; [@(0.0.255) `+ `-]]
+:: [s0; ]
+:: [s0; [@(0.0.255) `=`= !`= < > <`= >`=]]
+:: [s0; Note that all of these have the same priority. It is possible 
+to directly compare pointer with integer.]
+:: [s0; [@(0.0.255) `&`&]]
+:: [s0; ]
+:: [s0; [@(0.0.255) `|`|]]
+:: [s0; ]}}&]
+[s0; ]]
\ No newline at end of file