Afirmative estructure.
AM
S + IS + ING + COMPLEMENT
ARE
EXAMPLES:
I AM WRITING IN THE NHITEBOARD
SHE IS PLAYING CHESS
WE ARE PAYING ATTENTION
THEY ARE WATCHING TV.
NEGATIVE ESTRUCTURE
S + VERB AUXILIAR + NOT+VERB ING+ COMPLEMENT.
SHE ISNT LISTENING TO MUSIC
I AM NOT DRINKING
INTERROGATIVE ESTRUCTURE
VERB TO BE+ S + VERB- ING + COMPLEMENT.
ARE YOU LEARNING KARATE?
WHAT ARE YOU DOING HOW?
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