What should I do if the form is in a language I don't understand?
When you are in "My Batches", on the left hand side is "Language". You can select the language that you want the system to pull batches. The system will only pull batches in that language.
If you are in a batch that some of the forms are in another language, you can index the forms you can read and then return the batch, which will have saved the indexing you completed. It will then be available for some other indexer to complete the indexing. Before returning the batch, click on the feedback button on the right hand side above the image and let familysearch know that some of the images are in a different language. When you are in the batch, to return batch, click on "Batch" at top left of screen and click "Return Batch".