diff --git a/svr.js b/svr.js
index 2e8fcea..02503d7 100644
--- a/svr.js
+++ b/svr.js
@@ -1817,7 +1817,7 @@ var serverErrorDescs = {
   401: "You need to authenticate yourself in order to access the requested file.",
   402: "You need to pay in order to access the requested file.",
   403: "You don't have access to the requested file.",
-  404: "The requested file doesn't exist. If you have typed URL manually, then please check the spelling.",
+  404: "The requested file doesn't exist. If you have typed the URL manually, then please check the spelling.",
   405: "Method used to access the requested file isn't allowed.",
   406: "The request is capable of generating only not acceptable content.",
   407: "You need to authenticate yourself in order to use the proxy.",
@@ -1825,34 +1825,34 @@ var serverErrorDescs = {
   409: "The request you sent conflicts with the current state of the server.",
   410: "The requested file is permanently deleted.",
   411: "Content-Length property is required.",
-  412: "The server doesn't meet preconditions you put in the request.",
+  412: "The server doesn't meet the preconditions you put in the request.",
   413: "The request you sent is too large.",
-  414: "URL you sent is too long.",
+  414: "The URL you sent is too long.",
   415: "The media type of request you sent isn't supported by the server.",
   416: "Content-Range you sent is unsatisfiable.",
-  417: "Expectation in Expect property couldn't be satisfied.",
+  417: "Expectation specified in the Expect property couldn't be satisfied.",
   418: "The server (teapot) can't brew any coffee! ;)",
   421: "The request you made isn't intended for this server.",
   422: "The server couldn't process content sent by you.",
   423: "The requested file is locked.",
   424: "The request depends on another failed request.",
   425: "The server is unwilling to risk processing a request that might be replayed.",
-  426: "You need to upgrade protocols you use to request a file.",
+  426: "You need to upgrade the protocols you use to request a file.",
   428: "The request you sent needs to be conditional, but it isn't.",
-  429: "You sent too much requests to the server.",
+  429: "You sent too many requests to the server.",
   431: "The request you sent contains headers, that are too large.",
   451: "The requested file isn't accessible for legal reasons.",
-  497: "You sent non-TLS request to the HTTPS server.",
+  497: "You sent a non-TLS request to the HTTPS server.",
   500: "The server had an unexpected error. Below, the error stack is shown: </p><code>{stack}</code><p>Please contact with developer/administrator at <i>{contact}</i>.",
-  501: "The request requires use of a function, which isn't currently implemented by the server.",
+  501: "The request requires the use of a function, which isn't currently implemented by the server.",
   502: "The server had an error, while it was acting as a gateway.</p><p>Please contact with developer/administrator at <i>{contact}</i>.",
   503: "The service provided by the server is currently unavailable, possibly due to maintenance downtime or capacity problems. Please try again later.</p><p>Please contact with developer/administrator at <i>{contact}</i>.",
   504: "The server couldn't get response in time, while it was acting as a gateway.</p><p>Please contact with developer/administrator at <i>{contact}</i>.",
   505: "The server doesn't support HTTP version used in the request.",
   506: "Variant header is configured to be engaged in content negotiation.</p><p>Please contact with developer/administrator at <i>{contact}</i>.",
-  507: "The server ran out of disk space neccessary to complete the request.",
+  507: "The server ran out of disk space necessary to complete the request.",
   508: "The server detected an infinite loop while processing the request.",
-  509: "The server has it's bandwidth limit exceeded.</p><p>Please contact with developer/administrator at <i>{contact}</i>.",
+  509: "The server has its bandwidth limit exceeded.</p><p>Please contact with developer/administrator at <i>{contact}</i>.",
   510: "The server requires an extended HTTP request. The request you made isn't an extended HTTP request.",
   511: "You need to authenticate yourself in order to get network access.",
   598: "The server couldn't get response in time, while it was acting as a proxy.",