Maybe you have time to read this blog; perhaps it will help you with your Spanish. Maybe you need to review expressions of uncertainty and probability which require the use of the indicative or subjunctive. It’s possible that you can find solutions to your problems here.
When we are unsure about something we can use various Spanish expressions such as quizás, tal vez, a lo mejor, puede ser, and others. But do you know what form of the verb should follow? Well, it depends on the expression, because some are used only with the subjunctive, some only with the indicative, while others can be used with either, although the subjunctive usually indicates a greater degree of uncertainty.