Modal verbs are a special group of auxiliary verbs that express functions like ability, permission, obligation, and possibility. Regarding this topic, mark T (True) or F (False) for each statement:
(__)Modal verbs are always followed by the base form of the main verb (without "to"), and they do not change their form according to the subject.
(__)The modal verb "must" can be used to express a strong obligation or a logical deduction based on certain evidence in the present. 
(__)"Should" is the most appropriate modal verb to ask for a formal permission in a professional environment, replacing the use of "can" or "may."
(__)The negative form of "can" in the past tense is "could not" or "couldn't," which can indicate both a lack of ability or a lack of permission in the past.

After analyzing the statements, choose the alternative that presents the CORRECT sequence, from top to bottom: