diff --git a/README.md b/README.md
index 59ae61e6..44ed9836 100644
--- a/README.md
+++ b/README.md
@@ -202,7 +202,7 @@ The low-level API is as follows:
 - `solc.lowlevel.compileCallback`: this supports callbacks, introduced in 0.2.1
 - `solc.lowlevel.compileStandard`: this works just like `compile` above, but is only present in compilers after (and including) 0.4.11
 
-For examples how to use them, please refer to the README of the above mentioned solc-js releases.
+For examples of how to use them, please refer to the README of the above-mentioned solc-js releases.
 
 **Note**: These low-level functions remain available for compatibility reasons.
 However, they were superseded by the `compile()` function and are no longer required.
diff --git a/bindings/core.ts b/bindings/core.ts
index 674fb20e..7c0d9ded 100644
--- a/bindings/core.ts
+++ b/bindings/core.ts
@@ -128,7 +128,7 @@ function bindReset (solJson) {
  *
  * @param solJson The Emscripten compiled Solidity object.
  * @param alloc The memory allocation function.
- * @param str The source string being copied to a C string.
+ * @param str The source string is being copied to a C string.
  * @param ptr The pointer location where the C string will be set.
  */
 function unboundCopyToCString (solJson, alloc, str, ptr) {
diff --git a/common/types.ts b/common/types.ts
index 254484a1..1465ad95 100644
--- a/common/types.ts
+++ b/common/types.ts
@@ -1,7 +1,7 @@
 /**
  * A mapping between libraries and the addresses to which they were deployed.
  *
- * Containing support for two level configuration, These two level
+ * Containing support for two-level configuration, this two-level
  * configurations can be seen below.
  *
  * {
@@ -16,7 +16,7 @@ export interface LibraryAddresses {
 
 /**
  * A mapping between libraries and lists of placeholder instances present in their hex-encoded bytecode.
- * For each placeholder its length and the position of the first character is stored.
+ * For each placeholder its length and the position of the first character are stored.
  *
  * Each start and length entry will always directly refer to the position in
  * binary and not hex-encoded bytecode.
diff --git a/test/smtchecker.ts b/test/smtchecker.ts
index 70193339..f901cd36 100644
--- a/test/smtchecker.ts
+++ b/test/smtchecker.ts
@@ -56,7 +56,7 @@ tape('SMTChecker', function (t) {
 
 tape('SMTCheckerWithSolver', function (t) {
   // In these tests we require z3 to actually run the solver.
-  // This uses the SMT double run mechanism instead of the callback.
+  // This uses the SMT double-run mechanism instead of the callback.
 
   t.test('Simple test with axuiliaryInputRequested', function (st) {
     const z3 = smtsolver.availableSolvers.filter(solver => solver.command === 'z3');