て-form

〜てはいけないN5

must not do; prohibited from doing

〜ているわけにはいかないN3

can't very well do — ruled out by the situation, not a rule

〜てもいいN5

may do; it's okay to do

〜てくださいN5

please do — a polite instruction or request downward

〜てくれませんかN4

won't you do (for me)? — a casual request among equals

〜てもかまわないN3

it's fine to do; I don't mind if you do

〜てN5

and; and then; by doing — joins one part to the next

〜てからN5

after doing; since doing

〜てはじめてN2

only after doing; not until doing — the trigger for a realization

〜て以来いらいN2

ever since — the state that started then still holds now

〜ているかとおもうとN2

just when it looked like X — the opposite happens right away

〜ているところにN2

right when — at that exact moment something else cuts in from outside

〜ているあいだN5

the whole time that; throughout — fills the whole stretch, start to finish

〜ているあいだにN4

while; during — at some point within an interval

〜ているうちにN3

while the chance lasts; before the situation changes

〜ているとちゅうでN4

partway through; on the way — broken into before it was finished

〜ているさいちゅうにN2

right in the middle of — striking an activity at its peak

ずっと〜ているN5

the whole time; all along — one unbroken stretch, or comparison, by far

まだ〜ていないN5

still; and with ていない, not yet — the situation has not flipped

〜ていたらN5

if; when; once — after the condition completes

〜ているとN5

whenever; when — one thing automatically brings the next

〜てもN5

even if; even though; no matter

〜てよかったN4

I'm glad I did; it turned out well that…

〜ているN5

is doing; is in the state of having done

〜てあるN4

has been done and left that way (on purpose)

〜ておくN4

do in advance; do and leave it that way

〜てしまうN4

end up doing; do completely

〜てみるN4

try doing and see

〜ていくN2

change onward from now; do and go

〜てくるN4

has been getting; starts happening; go do and come back

〜ているところだ〜ているところをN4

just did; in the middle of doing; about to do

〜てばかりいるN2

does nothing but do X (habitual excess, disapproving)

〜てあげるN5

do (something) for someone — the speaker doing the favor

〜てくれるN5

do (something) for me; someone kindly does

〜てくれてありがとうN4

thanks for doing (something) for me — fixed thanks for a favor received

〜てもらうN5

have (someone) do; receive the favor of doing

〜てほしいN4

want (someone) to do — a wish about another person's act

〜てN4

because; and so — a cause and the reaction it produces

〜ているばかりN2

nothing but; only ever

〜てさえN2

even N (weaker cases hold too)

〜てすみませんN4

sorry for doing (something) — the act named up front

〜てみせる

I'll show you I can — resolve proven by doing the act itself

〜ていただくN4

humbly receive the favor of someone doing; have them do

〜ていただけませんかN4

could you please do (for me)? — a humble request, easy to decline

〜てまでN2

going so far as to — at a price judged too high

〜てでもN2

even if I have to — accepting the extreme to get it done

〜てはN2

if you (go on) doing that — and it will end badly

〜ているようでは

if that's how things are — then the outlook is bad

〜てこそN2

only by doing X; it's precisely by doing X that Y follows

〜てはいられないN2

can't afford to just keep doing X; can't sit still doing X

〜ているとおりに〜てあるとおりにN4

just as; exactly like; in the way that

どうか〜てくださいN2

please, I beg you — a request with no claim on the listener

いつ〜ても何なにを〜ても誰だれが〜てもどこで〜てもN2

no matter when / what / who / where — covers every case at once

いくら〜てもN5

no matter how much — no degree changes the outcome

万一まんいち〜てもN3

in the unlikely event — bad, unlikely, but planned for anyway

もしも〜てもN5

if; supposing — marks what follows as only a guess

〜てなんかN3

N of all things — knocks the noun down a peg

なんとか〜てくださいN2

somehow; manage to — an outcome reached against the odds

すでに〜ているN2

already; by now — the change was complete before this moment

たとえ〜てもN2

even if; even supposing — the concession is announced as purely hypothetical

〜てごらん

go on and do it — a coaxing instruction aimed downward

〜てからでないとN2

not until you've done X — until then, the rest is impossible

〜てくれと言いう

(someone) said to do it — relayed in the blunt words used

〜てもらいたいN2

I'd like you to do — wanting the act done, for one

〜て当然とうぜんだN2

it's only natural to; deserves it — a direct, expected consequence

ぜひ〜てくださいぜひ〜てほしいN5

by all means; do — presses a wish rather than just stating it