Two types. By saying there are two 'types' you are already stating that there are 2 differentthings and so the word 'different' isn't necessary.
It depends on context. For example, in a conversation between two people: Person #1: Those items are not for sale. Person #2: Which are? In that context, it is understood that "Which are?" means "Which items are for sale?"
Correct grammar is Bob and I but most people use causal grammer and you and Bob is OK.
"Both of whom" is correct grammar. It is used when referring to two people. For example, "I invited John and Mary, both of whom attended the party."
Neither one is really superior gramatically--they're just two different ways of saying the same thing.
It can be correct when used correctly. I am a student of the English language, as are you.
two days' notice
It depends on context. For example, in a conversation between two people: Person #1: Those items are not for sale. Person #2: Which are? In that context, it is understood that "Which are?" means "Which items are for sale?"
Arrived at two minutes before their cut off time is not a correct grammar.Is arrived at two minutes before their cut off time is not a correct grammar.
"Can we be friends," "Can you and he be friends"
Correct grammar is Bob and I but most people use causal grammer and you and Bob is OK.
The correct spelling/grammar is as well. It is two words, not one.
"Both of whom" is correct grammar. It is used when referring to two people. For example, "I invited John and Mary, both of whom attended the party."
Neither one is really superior gramatically--they're just two different ways of saying the same thing.
with correct spelling and grammar.
It can be correct when used correctly. I am a student of the English language, as are you.
Yes, the word "person" can be made plural by saying "persons" or "people". However, the word "people" sometimes means "tribe"; therefore, it can be made plural by saying "peoples", meaning "tribes".
This can fall under two different forms of sentence. One denoting a list, and one not. IE: Thomas is following Susanne. The following is a list of automobile parts you will need: So, this will largely depend on the kind of sentence you are forming and the information you are trying to get across to your audience.