diff --git a/acme.sh b/acme.sh
index 0e3110a..9b67b9f 100755
--- a/acme.sh
+++ b/acme.sh
@@ -188,28 +188,28 @@ _dlg_versions() {
   if _exists "${ACME_OPENSSL_BIN:-openssl}"; then
     ${ACME_OPENSSL_BIN:-openssl} version 2>&1
   else
-    echo "$ACME_OPENSSL_BIN doesn't exists."
+    echo "$ACME_OPENSSL_BIN doesn't exist."
   fi
 
   echo "apache:"
   if [ "$_APACHECTL" ] && _exists "$_APACHECTL"; then
     $_APACHECTL -V 2>&1
   else
-    echo "apache doesn't exists."
+    echo "apache doesn't exist."
   fi
 
   echo "nginx:"
   if _exists "nginx"; then
     nginx -V 2>&1
   else
-    echo "nginx doesn't exists."
+    echo "nginx doesn't exist."
   fi
 
   echo "socat:"
   if _exists "socat"; then
     socat -V 2>&1
   else
-    _debug "socat doesn't exists."
+    _debug "socat doesn't exist."
   fi
 }
 
@@ -5519,7 +5519,7 @@ revoke() {
       fi
     fi
   else
-    _info "Domain key file doesn't exists."
+    _info "Domain key file doesn't exist."
   fi
 
   _info "Try account key."
diff --git a/deploy/kong.sh b/deploy/kong.sh
index d3a6bc4..1e1e310 100755
--- a/deploy/kong.sh
+++ b/deploy/kong.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
-# If certificate already exist it will update only cert and key not touching other parameter
-# If certificate  doesn't exist it will only upload cert and key and not set other parameter
+# If certificate already exists it will update only cert and key, not touching other parameters
+# If certificate doesn't exist it will only upload cert and key, and not set other parameters
 # Note that we deploy full chain
 # Written by Geoffroi Genot <ggenot@voxbone.com>
 
diff --git a/dnsapi/dns_ali.sh b/dnsapi/dns_ali.sh
index 0c2365d..c210567 100755
--- a/dnsapi/dns_ali.sh
+++ b/dnsapi/dns_ali.sh
@@ -181,6 +181,7 @@ _describe_records_query() {
 
 _clean() {
   _check_exist_query "$_domain" "$_sub_domain"
+  # do not correct grammar here
   if ! _ali_rest "Check exist records" "ignore"; then
     return 1
   fi
diff --git a/dnsapi/dns_dgon.sh b/dnsapi/dns_dgon.sh
index c176afd..515e87d 100755
--- a/dnsapi/dns_dgon.sh
+++ b/dnsapi/dns_dgon.sh
@@ -22,7 +22,7 @@ dns_dgon_add() {
   txtvalue=$2
 
   DO_API_KEY="${DO_API_KEY:-$(_readaccountconf_mutable DO_API_KEY)}"
-  # Check if API Key Exist
+  # Check if API Key Exists
   if [ -z "$DO_API_KEY" ]; then
     DO_API_KEY=""
     _err "You did not specify DigitalOcean API key."
@@ -77,7 +77,7 @@ dns_dgon_rm() {
   txtvalue=$2
 
   DO_API_KEY="${DO_API_KEY:-$(_readaccountconf_mutable DO_API_KEY)}"
-  # Check if API Key Exist
+  # Check if API Key Exists
   if [ -z "$DO_API_KEY" ]; then
     DO_API_KEY=""
     _err "You did not specify DigitalOcean API key."
diff --git a/dnsapi/dns_dynv6.sh b/dnsapi/dns_dynv6.sh
index cf39282..819372c 100644
--- a/dnsapi/dns_dynv6.sh
+++ b/dnsapi/dns_dynv6.sh
@@ -18,7 +18,7 @@ dns_dynv6_add() {
   if ! _contains "$_your_hosts" "$_host"; then
     _debug "The host is $_host and the record $_record"
     _debug "Dynv6 returned $_your_hosts"
-    _err "The host $_host does not exists on your dynv6 account"
+    _err "The host $_host does not exist on your dynv6 account"
     return 1
   fi
   _debug "found host on your account"
@@ -49,7 +49,7 @@ dns_dynv6_rm() {
   if ! _contains "$_your_hosts" "$_host"; then
     _debug "The host is $_host and the record $_record"
     _debug "Dynv6 returned $_your_hosts"
-    _err "The host $_host does not exists on your dynv6 account"
+    _err "The host $_host does not exist on your dynv6 account"
     return 1
   fi
   _debug "found host on your account"
diff --git a/dnsapi/dns_gd.sh b/dnsapi/dns_gd.sh
index 7cf4738..7f8efca 100755
--- a/dnsapi/dns_gd.sh
+++ b/dnsapi/dns_gd.sh
@@ -91,7 +91,7 @@ dns_gd_rm() {
   fi
 
   if ! _contains "$response" "$txtvalue"; then
-    _info "The record is not existing, skip"
+    _info "The record does not exist, skip"
     return 0
   fi
 
diff --git a/dnsapi/dns_hetzner.sh b/dnsapi/dns_hetzner.sh
index d994d66..5db0418 100644
--- a/dnsapi/dns_hetzner.sh
+++ b/dnsapi/dns_hetzner.sh
@@ -155,7 +155,7 @@ _get_root() {
   if [ "$HETZNER_Zone_ID" ]; then
     _debug "Found, using: $HETZNER_Zone_ID"
     if ! _hetzner_rest GET "zones/${HETZNER_Zone_ID}"; then
-      _debug "Zone with id '$HETZNER_Zone_ID' not exists."
+      _debug "Zone with id '$HETZNER_Zone_ID' does not exist."
       _cleardomainconf "$domain_param_name"
       unset HETZNER_Zone_ID
     else
diff --git a/dnsapi/dns_kinghost.sh b/dnsapi/dns_kinghost.sh
index 898ab28..6253c71 100644
--- a/dnsapi/dns_kinghost.sh
+++ b/dnsapi/dns_kinghost.sh
@@ -37,7 +37,7 @@ dns_kinghost_add() {
   _debug "Getting txt records"
   _kinghost_rest GET "dns" "name=$fulldomain&content=$txtvalue"
 
-  #This API call returns "status":"ok" if dns record does not exists
+  #This API call returns "status":"ok" if dns record does not exist
   #We are creating a new txt record here, so we expect the "ok" status
   if ! echo "$response" | grep '"status":"ok"' >/dev/null; then
     _err "Error"