diff --git a/docs/03_register.md b/docs/03_register.md
index 2deef1ce..5b674c0a 100644
--- a/docs/03_register.md
+++ b/docs/03_register.md
@@ -29,4 +29,4 @@ As long as you belong to a specific semaphore group can register.
 
 ## Hats
 
-Those who are wearing hat with certain id could register.
+Those who are wearing a hat with a certain ID could register.
diff --git a/docs/04_voting.md b/docs/04_voting.md
index e46e4aaa..a933b466 100644
--- a/docs/04_voting.md
+++ b/docs/04_voting.md
@@ -4,7 +4,7 @@ Once applications have been approved and the voters' addresses have been added,
 
 - Navigate to https://maci-platform.vercel.app/signup
 - Click `Join` button to signup and wait for transaction confirmation
-- After signing up, you could navigate to https://maci-platform.vercel.app/projects and click the `Add` button on the project card or add your vote amount in the project details page (https://maci-platform.vercel.app/projects/:projectId)
+- After signing up, you can navigate to https://maci-platform.vercel.app/projects and click the `Add` button on the project card or add your vote amount in the project details page (https://maci-platform.vercel.app/projects/:projectId)
 - Click `Ballot` on the navbar to navigate to the ballot page (https://maci-platform.vercel.app/ballot)
 - Adjust the allocation
 - Click `Submit` and send the transaction
diff --git a/docs/06_maci_troubleshooting.md b/docs/06_maci_troubleshooting.md
index 5f8b749b..3cf6cdd7 100644
--- a/docs/06_maci_troubleshooting.md
+++ b/docs/06_maci_troubleshooting.md
@@ -9,7 +9,7 @@ Below are error codes and their related contract errors.
 | `0xf5ee9a14` | MACI: PoseidonHashLibrariesNotLinked() | The poseidon contracts are not linked to the MACI deployment factory, or the linked poseidon contracts are not working correctly.                                                                                              |
 | `0x79fae7af` | MACI: InvalidPubKey()                  | The generated MACI keypair is not on the curve, try to update the dependencies and re-generate one.                                                                                                                            |
 | `0xcd74a32b` | EASGatekeeper: AttesterNotTrusted()    | The attestation submitted to the contract is not given by the trusted address registered to the contract. Make sure you deploy the EASGatekeeper contract with correct attester, or ask for an attestation from that attester. |
-| `0xbff3c451` | EASGatekeeper: AlreadyRegistered()     | The provided attestation is already used to registered before.                                                                                                                                                                 |
+| `0xbff3c451` | EASGatekeeper: AlreadyRegistered()     | The provided attestation is already used to register before.                                                                                                                                                                 |
 
 ## Sign up revert