Instruction
1
First and foremost, the comma before the word "as" if this Union is included in the phrase role in the sentence which is close to the Union said. These include: "purposely", "as a result" "as an exception", "usually", "as always", "I", "how now", "like" and others. For example: in the Evening, as luck would have it, the sun was shining. Another example: And now he, as a consequence, is in jail.
2
If the Union "as" is a connecting between the two parts of the complex sentence, the comma is placed. For example: I've been thinking how it happened that we got lost in the woods, knowing the way. Another example: He stared as the fire burns down and his eyes languished some sadness.
3
If there is a circumstance which is expressed the comparative turnover, starting with the Union "as", a comma must be put. Example: Her eyes were as blue as the clear sky. Another example: he was strong as a lion in mortal combat.
4
Pay attention that if after turnover with the Union "as" offer ends at the end of the turnover you need to put another comma. For example: I distinctly heard a baby crying, but did not get up. Another example: she was laughing like the happiest man and ran towards me.
5
If the turnover that contains the Union "as" acts in the role of circumstances of manner, to put a comma is not necessary. For example: he spake like an Englishman. In these cases, turnover can easily replace the adverb (in this case "English"). In some cases, the turnover is replaced by a noun in instrumental case. Unfortunately, it is difficult to distinguish the circumstances of manner to the circumstances of the comparison.
6
Also the comma should not be put if the Union "as" part of the idiom. However, there should be sure that this phrase is sustainable. Example: he sat in the chair in front of me on pins and needles.
7
If the offer without the Union "as" has a complete meaning and is part of the predicate, the comma also do not need to put. For example: he held as a wolf. Also, no comma should be placed, if the word "how" is between predicate and subject. If it wasn't for this Union, it would be necessary to put the dash. For example: water as a mirror (water mirror).
8
If before the comparative turnover is the negation of "not" or the particle "just", "exactly", "exactly-in-exactly", "like", "quite", "nearly", "quite", to put a comma is not necessary. For example, the eyes of Harry was just like Lily.