So, too, either, neither

  •  “So” and “too” are used in positive sentences to show agreement.

POSITIVE SENTENCE, TOO

SO + AUXILIARY + SUBJECT

Auxiliary (do/ does/ have/ should/…)

Person A

Person B

Person B

I love football.

I love football, too.

So do I.

Jack can swim.

I can swim, too.

So can I.

Hana and Jim have done their tasks.

I have done my tasks, too.

So have I.

  • “Either” and “neither” are used in negative sentence to show agreement.(NEITHER = NOT EITHER)

NEGATIVE SENTENCE, EITHER.

NEITHER + AUXILIARY + SUBJECT

Auxiliary (do/ does/ have/ should/…)

Person A

Person B

Person B

I don’t love football.

I don’t (love football), either.

Neither do I.

Jack can’t swim.

I can’t (swim), either.

Neither can I.

Hana and Jim haven’t done their tasks.

I haven’t (done my tasks), either.

Neither have I.

 

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