AUxiliary verbs

Question 1

use of short form after that,

Answer 1

can’t use positive short form after but, - she isn’t happy but, he is not ‘s
can use negative short form I am tired but, Tomas isn’t

Question 2

do does and did differences

Answer 2

do for present simple questions and negative
does for present simple questions and negative third person
did for past simple questions and negative

Question 3

question tags use

Answer 3

positive sentence, negative question
it’s a perfect day, isn’t it? yes it’s wonderful

negative sentence, positive question
it isn’t my car, is it? it’s my mom’s

Question 4

too and either position

Answer 4

at the end of the sentence

Question 5

too and either use

Answer 5

too after a positive verb
either after a negative verb

i am thirsty
i am thirsty too

i am not very well
i am not very well either

Question 6

so am I and neither mean

Answer 6

so am i = i am too
neither ma I = I am not either

i am enthusiast
so am i

I don’t have the key
neither have i