て-Form VERB + いる as Ongoing Action (“am/is VERBing”)
One of the three expressions that the grammar construct て-Form VERB + いる represents is that of an ongoing action, which is very similar to the “am/is VERBing” present-progressive form used in the English language (i.e., “I am reading a book” or “he is sleeping “). However, because the て-Form VERB + いる construct can also be used to express habitual action and resultant states, it is important to be aware of which types of verbs are associated with which expression.
Computer wo tsukatte imasu.
(I am using the computer.)
George Washington wa nete iru.
(George Washington is sleeping.)