Abdulaziz (1991) notes

Abdulaziz, M. H. (1991). East Africa (Tanzania and Kenya). In J. Cheshire, English Around the World: Sociolinguistic Perspectives (pp. 391-401). Cambridge: Cambridge University Press.

Abdulaziz explains that there is a distinct form of East African English found in Kenya and Tanzania. However, while the variant of these two countries has much in common, there are also differences that came about due to the role that English played in each country after they gained independence from England. For example, in Kenya, English continued to be embraced in an official role in the schools at all levels, the judiciary system, parliament, etc. On the other hand, in Tanzania, English was removed from the primary schools and its other official capacities. Instead, Kiswahili was emphasized as the official language and lingua franca of the country. In fact, Kiswahili plays an important role in both countries because there are more than 140 languages represented between them. So when people from different tribes need to communicate in their day to day activities, they use Kiswahili. English is used more in the work place especially in the cities and for international communication. It is seen as the language of upward mobility and modernity.

Abdulaziz also says that East African English is marked more by its intonation than anything else. Morphology, syntax, and vocabulary are all relatively levelled.