These examples illustrate that tense does not always equate simply with time. When we use the term tense, we are referring to a grammatical form. Time, however, is a semantic concept that can be expressed in ways other than a grammatical marking of the verb. In sentence (2), for example, the futurity of the action is conveyed not by the verb but by the prepositional phrase at 10 pm. Further, tense can be used, in extended senses, to convey meanings other than time. In sentence (6), the past tense marks not past time but the speaker’s opinion that the subject is unlikely to actually study and that the situation is therefore a hypothetical one.

futurity

It’s really the implication of the term–its association with old grammar books–that causes some to avoid it. I, however, find it hard to see enough difference between the two terms to justify abandoning so familiar a term as “part of speech.”

When you are speaking to someone, you automatically ignore nonlinguistic differences in speech (i.e., someone’s pitch level, rate of speed, coughs) (Szczegielniak).

Keep in mind that the “buzz” sound is caused by the vibration of your vocal folds

Morphology: Word formation.