To add or show sequence: again, also, and, and then, besides, equally important, finally, first (second, ...), further, furthermore, in addition, in the first place, last, moreover, next, still too.
To compare: also, in the same way, likewise, similarly.
To contrast: although, and yet, but, but at the same time, despite, even so, even though, for all that, howevr, in contrast, in spite of, nevertheless, not withstanding, on the contrary, on the other hand, regardless, still, though, whereas, while, yet.
To give examples or intensify: after all, an illustration of, even, for example, for instance, indeed, in fact, it is true, of course, specifically, that is, to illustrate, truly.
To indicate place: above, adjacent to, below, elsewhere, farther on here, near, nearby, on the other side, opposite to, there, to the east, to the left.
To indicate time: after a while, afterward, as long as, as soon as, at last, at length, at that time, before, earlier, formerly, immediately, in the mean time, in the past, later, meanwhile, now, presently, shortly, simultaneously, since, so far, soon, subsequently, then, thereafter, until, when.
To repeart, summarize or conclude: all in all, altogether, as has been said, in brief, in conclusion, in other words, in particular, in short, in simpler terms, in summary, on the whole, that is, therefore, to put it differently, to summerize.
To show cause or effect: accordingly, as a result, because, because of (+ noun phrases), consequently,due to, for, for this purpose, hence, otherwise, since, then, therefore, thereupon, thus, to this end with this object.