The instant or moment, As soon as, Just as

Repeated at intervals, Every other, Every

Each time, Every time, Whenever

Or, Possibly, Maybe

But, Even while, Even though

In, On, At

the first, first of all, the foremost

Increasingly, More and more, To a greater extent

more and more, continue to, keep on

On the other hand, At the same time, While

Finally, At last, In the end

Already, Too late, By this point

Without doing, Without X being done, Not doing something and instead doing something else

cannot help doing, cannot resist doing, unable to keep from doing something

without, no, lacking

existence or presence of something, to have; possess, there is/are; there exists

unthinkable, inconceivable, unimaginable

Not necessarily, Not always, Not necessarily true

formal conjunctive form used to connect clauses, the stem form used to attach auxiliary/auxiliary-like endings in formal styles, conjunctive form for linking verbs and adjectives in written or polite contexts

suitable for, intended for, direction / orientation