No, it is not correct to say "combine something together with" because the word "combine" already implies bringing things together. You should use "combine something with" instead.
No, the correct phrasing is "Did you say something?" The word "said" should be changed to "say" to make the question grammatically correct.
Yes, it is correct to say that something impacted someone's life. When you say "impacted on someone's life," you are emphasizing the effect that something had on that person's life.
Either one could be correct. The sentence with "were" describes the past state of mind and the sentence with "are" describes a present state of mind. The cause of the state of mind was in the past in either instance, but this is not an example in which "parallelism" of tenses is needed, because it is reasonable that a past action could motivate either a present or a past state of mind.
Technically it should be "try to do something," but so many people say "try and do something" that it wouldn't sound incorrect to most people.
There is only one who can say correct,GOD
No. The correct way to say that you disagree with something would be "in disagreement."
No, the correct phrasing is "Did you say something?" The word "said" should be changed to "say" to make the question grammatically correct.
no it is not correct to say you are not for sure instead you can say in proper English that you are not sure about something
It would be more normal to say "bored with something"
Yes, it is correct to say that something impacted someone's life. When you say "impacted on someone's life," you are emphasizing the effect that something had on that person's life.
Couple is a plural noun so -- walk together -- is correct
yes
the correct way to say it is both of them cause they both make sense...
Say, "Thank you."
Yes assuming you are about to say a company that does something.
Either one could be correct. The sentence with "were" describes the past state of mind and the sentence with "are" describes a present state of mind. The cause of the state of mind was in the past in either instance, but this is not an example in which "parallelism" of tenses is needed, because it is reasonable that a past action could motivate either a present or a past state of mind.
It depends what you are saying. For example, it's correct to say this: "Walk in a straight line unless otherwise directed". It is not correct to say something weird like "Well call me unless otherwise you don't want to" or something. But it can be done.