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.
Freebase(0.00 / 0 votes)Rate this definition: Past tense. The past tense is a grammatical tense whose principal function is to place an action or situation in past time. In languages which have a past tense, it thus provides a grammatical means of indicating that the event being referred to took place in the past.