It doesn`t matter if the “if I were you” dependent clause begins or ends the sentence. Therefore, all sentences are grammatically correct. If you start a sentence with a dependent clause, use a corresponding comma. If you`re just trying to let someone know where you are physically, your sentence would be better written: “I`m behind you” or “I`m behind you.” But we also have the adage “I have your back” to say to someone, “I intend to show you my support when you are challenged.” Examples: Three miles is too far on foot. Five years is the maximum penalty for this offence. $10 is a price to pay. But ten dollars (i.e. dollar bills) were scattered on the ground. You are right about the subjunctive nature of the sentence.
In the case of your sentence, the use of “wish” may lead to the verb “bear” having a subjunctive mood because a wish is expressed. The connective subjunctive mind pairs individual subjects with what we usually consider plural verbs. Subjective mood is losing ground in spoken English, but should nevertheless be used in formal language and writing. You found some interesting examples. However, “I hope he finds it” and “If he goes away” are wrong, because they are not in the subjunctive. The first is only a declaration of desire and the second is the beginning of a conditional clause. In these sentences, break and enter and bed and breakfast are composed of names. If we were in an imperative mood, that is, we gave an order, we would be “praised”: “Praise to the one who is the guardian of his brother.” I hope this is a simpler building rule for the English subjunctive. The regular subjunctive is decreasing over time. Thus “will increase” (future) goes back in time to “increase” (today).
As in the example: “She asked him to raise his hand.” In general, you use the perfect voltage past when using subjunctive mood with verbs were next to it. This rule can cause shocks on the road. For example, if I am one of two (or more) subjects, it could lead to this strange phrase: I am Brazilian and I am a “self-taught” English speaker. I learned English, how a child learns to speak: by repetition, by comparison, by conclusion. And the subjunctive spirit came and still comes automatically to me, because we used it very well in Portuguese (my native language). However, as someone else has already mentioned, Microsoft is still trying to confuse me (as is the case in Portuguese and, I believe, in all other languages due to programming restrictions).