Final answer:
The sentences are in the simple present tense and present continuous tense, with the former stating a general truth and the latter describing an ongoing action.
Step-by-step explanation:
In terms of verb tense, the sentences: "...remote workers are already common." and "The workforce is changing massively." are, respectively, in the simple present and present continuous tense. The first sentence uses "are," which is the simple present tense of the verb "to be," indicating a general fact or regular occurrence in the present.
The second sentence uses "is changing," which is the present continuous tense of the verb "to change," indicating an ongoing action in the present.
The sentences '...remote workers are already common' and 'The workforce is changing massively' are, respectively, in the simple present and present continuous verb tenses.
The simple present tense is used to talk about general truths, habits, and repeated actions, while the present continuous tense is used to describe ongoing actions happening at the moment of speaking or around the present time.