'So do I' and 'neither do I'
We use 'so do I' to say that a positive sentence is also true for speaker, and we use 'neither do I' to say that a negative sentence is also true for speaker:
+Peter hates mushrooms. So do I (=I also hate mushrooms).
+Marry doesn't live in London. Neither do I (=I also don't live in London).
The verb after 'so' or 'neither' changes depending on the tense of the verb in the first sentence.
What about 'too' and 'either'?
We can also use 'I do too' and 'I don't either', which mean the same as 'so do I' and 'neither do I':
+Peter hates mushrooms. I do too.(=I also hate mushrooms).
+Marry doesn't live in London. I don't either. (=I also don't live in London).
The verb changes in the same way as with 'so do I' and 'neither do I' (remember you need a negative verb with 'either'):
We can also use 'me too' and 'me neither'. 'Me too' has the same meaning as 'so + auxiliary verb + I' and 'me neither' has the same meaning as 'neither + auxiliary verb + I'. 'Me too' and 'me neither' are very informal:
+ Peter hates mushrooms Me too.( I also hate mushrooms).
+Marry doesn't live in London. Me neither. (=I also don't live in London).
We use 'so do I' to say that a positive sentence is also true for speaker, and we use 'neither do I' to say that a negative sentence is also true for speaker:
+Peter hates mushrooms. So do I (=I also hate mushrooms).
+Marry doesn't live in London. Neither do I (=I also don't live in London).
The verb after 'so' or 'neither' changes depending on the tense of the verb in the first sentence.
| Present simple: use 'do / does' | Lucy likes coffee. So do I. Lucy doesn't like coffee. Neither do I. |
| Present simple with 'be': use 'am / is / are' | John's at the office. So am I. John isn't at the office. Neither am I. |
| Past Simple: use 'did' | Jill went to the cinema yesterday. So did I. Jill didn't go to the cinema yesterday. Neither did I. |
| Past simple with 'be': use 'was / were' | She was at the library. So was I. She wasn't at the library. Neither was I. |
| Present perfect: use 'have / has' | They've been to Colombia. So have I. They haven't been to Colombia. Neither have I. |
| Future simple: use 'will' | Edward will be at the cafe later. So will I. Edward won't be at the cafe later. Neither will I. |
| Modal verbs: repeat the modal verb | He would like a cup of tea. So would I. He wouldn't like a cup of tea. Neither would I. Emma can speak Russian. So can I. Emma can't speak Russian. Neither can I. |
| Present continuous: use 'am / is / are' | Luke's going out tonight. So am I. Luke isn't going out tonight. Neither am I. |
We can also use 'I do too' and 'I don't either', which mean the same as 'so do I' and 'neither do I':
+Peter hates mushrooms. I do too.(=I also hate mushrooms).
+Marry doesn't live in London. I don't either. (=I also don't live in London).
The verb changes in the same way as with 'so do I' and 'neither do I' (remember you need a negative verb with 'either'):
- Present simple: John's at the office. I am too.
- Present continuous: Luke isn't going out tonight. I'm not either.
- Present perfect: They've been to Colombia. I have too.
- Modal verbs: Emma can't speak Russian. I can't either.
We can also use 'me too' and 'me neither'. 'Me too' has the same meaning as 'so + auxiliary verb + I' and 'me neither' has the same meaning as 'neither + auxiliary verb + I'. 'Me too' and 'me neither' are very informal:
+ Peter hates mushrooms Me too.( I also hate mushrooms).
+Marry doesn't live in London. Me neither. (=I also don't live in London).