<prompt> At what age child begins to use past and present tense1 Years2 Years18 Months30 Months  <response>: Begin to identify objects from a group by their function and pas ie. which one has wheels, which one can we eat Begin to use verbs with ing endings i.e. eating; Early concepts such as big, little are identified; Child will use no, not and answer where questions Reference: GHAI Essential pediatrics, 8th edition 