preposition

Addition

Again, Along with, And, And then, Another, Apart from, Also, As well as, Besides, Besides which, Equally important, First, Second, etc, For example, For instance, Further, Furthermore, In addition, In addition to, likewise, / Additionally / An additional, Furthermore, Moreover, Not to mention, Not only,

Next, Nor, One could also say, Too, what’s more
Finally, Incidentally, lastly

Agreement

Of course, Admittedly, It is true that,
Certainly, No doubt

Clarrification

For instance, In other words, Put another way, That is.

Comparison

After all, Another way to view this, As, Also, At the same time, Balanced against, By and large, by and large, By comparison, Compare, compare(d) to / with ,
In comparison, in a like manner, in like manner, in a similar manner ,In the same way, In the same manner, Just as , Just like , Like, Likewise Meanwhile, Not only...but also , Same as , Similar to , Similarly, Simultaneously, whereas
like, while

conditional

as long as, even if, if, one condition that, provided(that), providing(that)
so long as, unless, whether......or

Contrast

In theory… in practice…
A different view is, after all, although, Although this is, And, And yet. apart from,
Balanced against, But, but at the same time, By (way of) contrast
Conversely, Despite, despite the fact that, Differing from, even if, even so, even though, except that, for all that, However, in comparison, In contrast, In fact, in reality, in spite of, in spite of, in spite of the fact that, instead, then, much as, Nevertheless, Nonetheless, Notwithstanding, nor, not that, On the other hand, On the  contrary, though,
Otherwise, regardless, still, true, Unlike, While, while this is true, whilst, Whereas, yet, 

Concession (indicates that the previous view is accepted with reservations):

Admittedly, After all, All the same, Although, although true, Altmay be truehough this, and yet, At the same time, Besides, Despite, Doubtless, Even if/though, Even so, granted perhaps, However, In spite of, Naturally, Nevertheless, No doubt, Nonetheless, Notwithstanding
of course, Only, Still, Under certain circumstances, Up to a point, While, Yet , 

CONCLUSION

Accordingly, Consequently, Finally, Ultimately
All in all, Altogether, As a result, As shown, Hence, In brief, In conclusion, In other words, In particular, In short, In summary, On the whole, To conclude, That is, Therefore, Thus So, To summarise, Summing up.

Emphasis

Again, As a matter of fact, For this reason, In fact, Indeed , In fact Particularly / in particular , To emphasize, To repeat
Admittedly, Clearly, Especially, Generally, Importantly, Obviously, truly, Undoubtedly.

Example

As an illustration, For example, For instance, Indeed, In fact, In other words, In particular, Including, Such as, That is (ie),
To demonstrate, To illustrate, In particular, , , , In this case, Take the case of, One example of this is, On this occasion,
Especially, Frequently, incidentally, Namely, particularly, Specifically. 

Manner

As, As if, As though, In a way, In the way, Just as, like, Much as, The way
Opposite idea or show exception:
Alternatively, In contrast, On the other hand
But, In spite of, Still
Despite, Instead, Whereas
Even though, Nevertheless, While
However, One could also say, Yet
Purpose
In case, In order, In order that, In order to, So, So as to, So that, to. 

Place/ Location

Above, Across, Adjacent, Adjacent to, Against, Along, Among, Around, At the side, Away from, Behind, Below, Beneath, Beside, Between, Beyond, By, Down, Elsewhere, Farther on, Here, Inside, Into, In front, In the background, In the distance, In the foreground, Near, Nearby, Off, On the other side, Onto, Opposite to, Outside, Over To the left, To the right, There, Throughout, Under,
Away from, At the side, In the back, In back of, In the distance, In the front, On top of, To the right, To the left/right, To the east/west/north/south.

Reason

As , as a result of, For, given that, in case, in view of the fact, Because , Because of, Due to / due to the fact that, just in case, on account of, Owing to / owing to the fact that, Since , that, seeing as/ that, considering.

Result

So , accordingly, and so, As a result , As a consequence (of) , because of, Consequently , Due to, due to this, else, or else, for this/that reason, Hence , in order that, now, otherwise, so, so that, then, Therefore ,Thus, the consequence is, the result is, This means that, consequently.

Reformulation (expresses something in another way):

Better, In other words, In that case, Rather
That is, That is to say, To put it (more) simply
Replacement (expresses an alternative to what has preceded):
Again, Alternatively, Another possibility would be, Better/worse still
On the other hand, Rather, The alternative is.

Show cause and effect

And so, Consequently, Therefore
As a consequence, For this reason, Thus
As a result, Hence
Then, Because, Consequently, Hence, For this purpose
Since, Accordingly, Therefore, Thereupon, Thus, To this end. 

Sequence

After, Afterwards, Also, Another, And then, At this point, At this time, Before, First of all, Followed by, Further / furthermore, In the first place, In the second place, In the third place, In addition, In conclusion, last, Meanwhile, Moreover, Next, To begin with, To summarise,
First / firstly, second / secondly, third / thirdly etc ,
The former, … the latter
The first point is
The following
Concurrently , Eventually, Finally, Lastly, Previously, Simultaneously, Subsequently, Ultimately.

Summarising

As a result, As shown, By and large, In brieft, In other words, In short, In a nutshell, In conclusion, To conclude, Therefore, Thus
Consequently, In summary, To conclude
Finally, On the whole, To summarise
Hence, Summing up, Ultimately.

Time

About, After, After a few hours, After a while, Afterwhich, Afterward, Afterwards, After a short time , And, As, As long as, As soon as, At, At last, At length, At that time, At the same time, At this point, At this time, At which(point) , Before, By the time, During, Earlier, First, Following, In the future, In the meantime, In the past, Later, Meanwhile, Next, Prior to, Next week, No sooner, Now, Once, Since, So far, Soon, Soon after, The moment, Then, Thereafter, Till, Today, To this day, Until, Until now, When, Whenever, Whereupon, while
Currently, Eventually, Finally, Formerly, Hardly, Immediately, Initially, Lately, Presently, Previously, Recently, Shortly. Simultaneously, Subsequently, Temporarily.