Difficulty with spoken language is the defining characteristic of aphasia.
No matter what type of aphasia you have, spoken language will be involved. In mild aphasia, spoken language might be mostly intact with only minor difficulties. A minor impairment might be difficulty with repeating or word-finding (thinking of the right word).
In severe aphasia, a person might not be able to communicate using spoken language at all. Some people say the same word over and over again (perseverate), but can use different intonations to convey different meanings. Still others will speak in long sentences, but the words do not make sense together, or might not even be real words.