I never lied on my dad.
Because of the vicissitude of the weather this time of year, it is difficult to plan a picnic too far ahead.
it is more difficult to see events ahead
As a noun: You should stay with us tonight, the fog is too thick to drive home safely.As a verb: If I don't get enough sleep, my brain will fogup making the exam even more difficult.
The error in the sentence is that "ahead of time" and "in advance" mean the same thing, it is a duplication. The sentence should read: I would like to be informed ahead of time. Or, I would like to be informed in advance.
I finished the test ahead of time
He liked to work ahead of the class.
The dense fog made it difficult to see more than a few feet ahead.
That is not so much a sentence as a news headline.The implied verb is "is", i.e. Netanyahu (is) ahead in Israel"
It could be with an apostrophe: A prosperous day's ahead. (day's = day is) Otherwise it is not a sentence at all, as there is no predicate.
When you can't look ahead, look by your side.
Yes, it is acceptable to start a sentence with the word "regardless." For example, "Regardless of the outcome, we must stay positive."
suddenly loomed ahead. Predicate is everything except the subject. The subject in this sentence is 'A steep mountain'