checking
v.v. to look at something carefully to make sure it is correct, safe, or in good condition. You do this when you want to confirm the facts or find a mistake.
v. to examine something in order to determine its accuracy, quality, or condition. Transitive; frequently used to verify information or ensure compliance with a standard.
I am checking my bank balance online.
The accountant is currently checking the monthly statements to ensure all the transactions match the receipts.
Before submitting the final report, the lead researcher spent hours checking the data sets for any statistical anomalies that might undermine the study's conclusions.
The verb is transitive and takes a direct object; often followed by 'for' when looking for a specific problem.
I am checking if it is rainingI am checking to see if it is rainingWhile common in speech, 'checking if' is often improved in writing by adding 'to see' or 'to determine' to clarify the purpose of the action.