Transitional words and phrases can be divided into categories, grouped according to their use. The following should give you lots of ideas for adding transitional elements to your writing:

• addition/sequence: additionally, afterward, again, also, another … , besides, finally, first … second … third, further, furthermore, in addition, in the first place, initially, last, later, likewise, meanwhile, moreover, next, other, overall, still, too

• concession: admittedly, although it's true that, certainly, conceding that, granted that, in fact, it may appear that, naturally, no doubt, of course, surely, undoubtedly, without a doubt

• contrast: after all, alternatively, although, and yet, at the same time, but, conversely, despite, even so, even though, for all that, however, in contrast, in spite of, instead, nevertheless, nonetheless, nor, notwithstanding, on the contrary, on the other hand, or, otherwise, regardless, still, though, yet

• examples, clarification, emphasis: after all, an instance of this, as an illustration, by all means, certainly, clearly, definitely, e.g., even, for example, for instance, for one thing, i.e., importantly, indeed, in fact, in other words, in particular, in short, more than that, namely, of course, of major concern, once again, specifically, somewhat, such as, that is, that is to say, the following example, this can be seen in, thus, to clarify, to demonstrate, to illustrate, to repeat, to rephrase, to put another way, truly, undoubtedly, without a doubt

• place or direction: above, adjacent to, at that point, below, beyond, close by, closer to, elsewhere, far, farther on, here, in the back, in the distance, in the front, near, nearby, neighboring on, next to, on the other side, opposite to, overhead, there, to the left, to the right, to the side, under, underneath, wherever

• purpose/cause and effect: accordingly, as a consequence, as a result, because, consequently, due to, for that reason, for this purpose, hence, in order that, on account of, since, so, so that, then, therefore, thereupon, thus, to do this, to this end, with this in mind, with this objective

• qualification: almost, although, always, frequently, habitually, maybe, nearly, never, oftentimes, often, perhaps, probably, time and again

• result: accordingly, and so, as a result, as an outcome, consequently, hence, so, then, therefore, thereupon, thus

• similarity: again, also, and, as well as, besides, by the same token, for example, furthermore, in a like manner, in a similar way, in the same way, like, likewise, moreover, once more, similarly, so

• summary or conclusion: after all, all in all, as a result, as has been noted, as I have said, as we have seen, as mentioned earlier, as stated, clearly, finally, in any event, in brief, in conclusion, in other words, in particular, in short, in simpler terms, in summary, on the whole, that is, therefore, to conclude, to summarize

• time: after a bit, after a few days, after a while, afterward, again, also, and then, as long as, as soon as, at first, at last, at length, at that time, at the same time, before, during, earlier, eventually, finally, first, following, formerly, further, hence, initially, immediately, in a few days, in the first place, in the future, in the meantime, in the past, last, lately, later, meanwhile, next, now, on (a certain day), once, presently, previously, recently, second, shortly, simultaneously, since, so far, soon, still, subsequently, then, thereafter, this time, today, tomorrow, until, until now, when, whenever