Are there languages where verbs inflect for mood but don't inflect for tense and aspect?
For instance, if a language had one set of indicative forms and another set of subjunctive forms, but didn't distinguish past, present, or future tense, or imperfect and perfect aspect, that would count. Or, similarly, if it had an imperative or a special form for hypotheticals, but didn't distinguish any of those tenses or aspects, that would count.
(To be clear: obviously, all languages can express meanings like "this happened in the past" or "this is an ongoing situation." The question is whether there are special verb forms for these things.)