diff --git a/gui/codeeditstyledialog.cpp b/gui/codeeditstyledialog.cpp
index a3d2cab3d..e3461bd55 100644
--- a/gui/codeeditstyledialog.cpp
+++ b/gui/codeeditstyledialog.cpp
@@ -87,7 +87,7 @@ StyleEditDialog::StyleEditDialog(const CodeEditorStyle& newStyle,
     flEditControls->addRow(QObject::tr("Keyword Font Weight"),
                            mCBKeywordWeight);
     mBtnClassFG = new SelectColorButton(this);
-    flEditControls->addRow(QObject::tr("Class ForegroundColor"),
+    flEditControls->addRow(QObject::tr("Class Foreground Color"),
                            mBtnClassFG);
     mCBClassWeight = new SelectFontWeightCombo(this);
     flEditControls->addRow(QObject::tr("Class Font Weight"),
diff --git a/gui/librarydialog.cpp b/gui/librarydialog.cpp
index 4a730c311..dbe986f10 100644
--- a/gui/librarydialog.cpp
+++ b/gui/librarydialog.cpp
@@ -93,7 +93,7 @@ void LibraryDialog::openCfg()
     if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
         QMessageBox msg(QMessageBox::Critical,
                         tr("Cppcheck"),
-                        tr("Can not open file %1.").arg(selectedFile),
+                        tr("Cannot open file %1.").arg(selectedFile),
                         QMessageBox::Ok,
                         this);
         msg.exec();
@@ -142,7 +142,7 @@ void LibraryDialog::saveCfg()
     } else {
         QMessageBox msg(QMessageBox::Critical,
                         tr("Cppcheck"),
-                        tr("Can not save file %1.").arg(mFileName),
+                        tr("Cannot save file %1.").arg(mFileName),
                         QMessageBox::Ok,
                         this);
         msg.exec();
diff --git a/gui/mainwindow.cpp b/gui/mainwindow.cpp
index 1e528771a..9769521e1 100644
--- a/gui/mainwindow.cpp
+++ b/gui/mainwindow.cpp
@@ -1107,7 +1107,7 @@ void MainWindow::openResults()
         QMessageBox msgBox(this);
         msgBox.setWindowTitle(tr("Cppcheck"));
         const QString msg(tr("Current results will be cleared.\n\n"
-                             "Opening a new XML file will clear current results."
+                             "Opening a new XML file will clear current results.\n"
                              "Do you want to proceed?"));
         msgBox.setText(msg);
         msgBox.setIcon(QMessageBox::Warning);
diff --git a/man/cppcheck-design.docbook b/man/cppcheck-design.docbook
index 3435b6244..82eadfcfe 100644
--- a/man/cppcheck-design.docbook
+++ b/man/cppcheck-design.docbook
@@ -182,7 +182,7 @@ void f2()
   <section>
     <title>Final thoughts</title>
 
-    <para>You can not trust that Cppcheck will detect all bugs.</para>
+    <para>You cannot trust that Cppcheck will detect all bugs.</para>
 
     <para>Cppcheck will just find some bugs. It is likely that you won't find
     these bugs unless you use Cppcheck.</para>
diff --git a/man/manual.docbook b/man/manual.docbook
index a72bed604..5df9b3fc3 100644
--- a/man/manual.docbook
+++ b/man/manual.docbook
@@ -1886,7 +1886,7 @@ Checking unusedvar.cpp...
 
     <para>You can define custom rules using regular expressions.</para>
 
-    <para>These rules can not perform sophisticated analysis of the code. But
+    <para>These rules cannot perform sophisticated analysis of the code. But
     they give you an easy way to check for various simple patterns in the
     code.</para>