She is taking a shower now. she is cleaning her teeth now. she is dressing now. she is breakfast now. а как будет отрицание пример my sister does exercises every day - she is doing exercises now - she is not doing exercises every day

She isn't taking a shower now
She isn't cleaning her teeht now
She isn't dressing now. 
She isn't breakfast now. 
будет She is not doing exercises now

She isn't taking a shower.
She isn't cleaning her teeth now.
She isn't dressing now.
She isn't breakfast now.
She isn't doing an exercises now.