The stress difference on cushion is there, but it's very faint. Absent and recap aren't really ever used as direct verbs that I've heard.
E.g. "I am going to be absent" and "I am going to recap you on this" (or really the more natural "I'll give you a recap" where it is not used as a verb at all) is the most common form I hear in the US
The version of recap that has verb stress means to cap again. The shortened version of recapitulate ordinarily takes the stress on the first syllable. As for absent as a verb, it's rarely used in the present tense, though absented isn't all that uncommon ("I absented myself.").
E.g. "I am going to be absent" and "I am going to recap you on this" (or really the more natural "I'll give you a recap" where it is not used as a verb at all) is the most common form I hear in the US