Question

form of present continuous

Answer 1

Affirmative
Subject	+ to be	+ base + ing
She	is	talking.
Negative
Subject	+ to be + not	+ base + ing
She	is not (isn't)	talking
Interrogative
to be	+ subject	+ base + ing
Is	she	talking?  ST           Chúc bạn học tốt ~^^~

Answer 2

(+) S + V-ing + O +...

(-) S + V-ing + not + O +...

(?)Am/Is/Are + S + V-ing + O +......

MERRY CHRISTMAS!!!

Answer 3

(+) S+to be+V-ing+O...

(-) S+ to be+not+V-ing+O...

(?)To be+ S+V-ing+O...?

Answer 4

(+) S+to be+V-ing+O...

(-) S+ to be+not+V-ing+O...

(?)To be(am,are,is)+ S+V-ing+O...?

Good lucky 

Answer 5

(+) S + V-ing + O +...

(-) S + V-ing + not + O +...

(?)Am/Is/Are + S + V-ing + O +...... ?

Chúc bạn học tốt !