Other forms: present tenses
In grammar, the present tense is the verb form you use when you talk about what's happening right now. "You are standing on my foot" is in the present tense.
If you describe things you're currently doing, or that you usually do, or a current state, you'll use the present tense without even thinking about it. Sentences like "I feel sad," or "He always gets up late on the weekends," or "Birds chirp more in the morning than they do later in the day" are all in the present tense.