あなたがたばこを吸ってもかまわない。

you (referring to someone of equal or lower status); dear (what a wife calls a husband)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

tobacco; cigarette; cigaret; cigar; tobacco plant (Nicotiana tabacum)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to smoke; to breathe in; to inhale; to suck; to sip; to slurp; to absorb; to soak up; to kiss

too; also; in addition; as well; (not) either (in a negative sentence); both A and B; A as well as B; neither A nor B (in a negative sentence); even; as much as; as many as; as far as; as long as; no less than; no fewer than; even if; even though; although; in spite of; further; more; again; another; the other

to mind; to care about; to be concerned about; to care for; to look after; to prepare for; to interfere with; to meddle in; to tease