Both "Where can I weight my groceries?" and "Where can I weigh my groceries?" are similar phrases, but the correct one is: "Where can I weigh my groceries?" In this context, "weigh" is the correct verb to use when referring to measuring the weight of your groceries on a scale. "Weight" is a noun that refers to the measurement of how heavy something is, while "weigh" is the verb that means to determine the weight of something.

Where can I weigh my groceries is correct. You can also say, Where can I get the weight of my groceries. Or What is the weight of my groceries? What is your weight? Or How much do you weigh? How much does this weigh? How much does it weigh? I would try and memorize the different uses and use those until you get a better grasp and then try to understand it better later maybe.

“Where can I weigh” or “Where can I find the weight of”

hi

In daily conversations you would ask what WEIGHT an item was and you would say you or an item WEIGHED x pounds/kilos. You may enquire/inquire as to where you can/could established find out the weight of your groceries. "Where can I WEIGHT my groceries" is absolutely incorrect. In a store "Excuse me where can I weigh my groceries" <- correct and natural "Excuses me where can I find out the weight of my groceries" <- grammatically possible but unnatural, convoluted and redundant"