You know what it is like when you cannot remember how to conjugate a verb? Maybe you remember the 1st person singular but not the 3rd person plural. Language dictionaries will give the infinitive, but they usually do not conjugate the verb for you. I came across this website that I felt was worth sharing:
Not all languages are extensive. The strength seems to be with Latin-based languages. When you are preparing a sermon or lesson or just need to double check on a verb you’ve been slaughtering, see if this site may be of help to you.
Do you have any other online resources that have been a big help for you in the language?