diff --git a/include/mbedtls/pk.h b/include/mbedtls/pk.h
index fc0ce7046..41e980d62 100644
--- a/include/mbedtls/pk.h
+++ b/include/mbedtls/pk.h
@@ -173,7 +173,7 @@ typedef struct mbedtls_pk_rsassa_pss_options {
 
 /* Internal helper to define which fields in the pk_context structure below
  * should be used for EC keys: legacy ecp_keypair or the raw (PSA friendly)
- * format. It should be noticed that this only affect how data is stored, not
+ * format. It should be noticed that this only affects how data is stored, not
  * which functions are used for various operations. The overall picture looks
  * like this:
  * - if USE_PSA is not defined and ECP_C is then use ecp_keypair data structure
@@ -202,7 +202,7 @@ typedef struct mbedtls_pk_rsassa_pss_options {
 
 /* Internal helper to define which fields in the pk_context structure below
  * should be used for EC keys: legacy ecp_keypair or the raw (PSA friendly)
- * format. It should be noticed that this only affect how data is stored, not
+ * format. It should be noted that this only affect how data is stored, not
  * which functions are used for various operations. The overall picture looks
  * like this:
  * - if USE_PSA is not defined and ECP_C is then use ecp_keypair data structure
@@ -213,9 +213,9 @@ typedef struct mbedtls_pk_rsassa_pss_options {
  *     - if !ECP_C then use new raw data and PSA functions directly.
  *
  * The main reason for the "intermediate" (USE_PSA + ECP_C) above is that as long
- * as ECP_C is defined mbedtls_pk_ec() gives the user a read/write access to the
- * ecp_keypair structure inside the pk_context so he/she can modify it using
- * ECP functions which are not under PK module's control.
+ * as ECP_C is defined mbedtls_pk_ec() gives the user read/write access to the
+ * ecp_keypair structure inside the pk_context so they can modify it using
+ * ECP functions which are not under the PK module's control.
  */
 #if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) && \
     !defined(MBEDTLS_ECP_C)