Also known as: Oxacillin-resistant Staphylococcus aureus (ORSA), Methicillin-resistant S. aureus (MRSA) Microbiology: MRSA is a Gram-positive coccus that is catalase positive and oxidase negative with a characteristic âbunch of grapesâ appearance under the microscope due to the activity of the coagulase enzyme.
The past tense of read would be read. Though they are speeled the same, the present tense is pronounced like reed while the past tense is pronounced like red.
For instance, there is no past tense of the word 'desk' (there is no 'desked' or 'did desk', because desk is a n â¦ oun, not a verb. Or it could mean: Past perfect. Past perfect is sometimes described as 'past in the past'.