Few grammatical corrections

Few grammatical corrections

Author: VenkataPavan2494

1-js/11-async/02-promise-basics/article.md

@@ -28,10 +28,10 @@ Its arguments `resolve` and `reject` are callbacks provided by JavaScript itself
 
 When the executor obtains the result, be it soon or late, doesn't matter, it should call one of these callbacks:
 
-- `resolve(value)` — if the job finished successfully, with result `value`.
-- `reject(error)` — if an error occurred, `error` is the error object.
+- `resolve(value)` — if the job is finished successfully, with result `value`.
+- `reject(error)` — if an error has occurred, `error` is the error object.
 
-So to summarize: the executor runs automatically and attempts to perform a job. When it is finished with the attempt it calls `resolve` if it was successful or `reject` if there was an error.
+So to summarize: the executor runs automatically and attempts to perform a job. When it is finished with the attempt, it calls `resolve` if it was successful or `reject` if there was an error.
 
 The `promise` object returned by the `new Promise` constructor has these internal properties: