(complex conjunctions) so long as | on condition that | in the event that

Here are examples of ‘so long as’ and ‘on condition that’ meaning ‘only if’:

So long as they keep to themselves, it makes no difference to me.

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The house and grounds are left to the city of Gotham on condition that they never be demolished, 

altered or otherwise interfered with.

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Here’s an example of ‘in the event that’ meaning ‘should something happen’:

I’m here to protect you in the event that someone tries to access your mind through your dreams.

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The English Grammar Profile C2 Point 122 in CLAUSES/conditional is defined as:

conditional subordinate clauses with a range of conjunctions (‘so long as’, ‘on condition that’, ‘in the event that’) with past, present or future reference.

Pearson lists two of these as GSE 64 B2

• a range of complex conjunctions in conditional statements (all three types).
• clause1 (action or event) + ‘on condition that/as long as/ providing that/provided that‘ + clause 2 (condition)

*‘provided that’ is listed at B2 in the EGP.

A search on iWeb corpus for:

so long as * *

1 SO LONG AS IT IS 2991

   Innovation Origins

Any customer can have a car painted any color that he wants so long as it is black.

2 SO LONG AS THEY ARE 2674
3 SO LONG AS YOU DO 2379
4 SO LONG AS YOU HAVE 2005
5 SO LONG AS YOU ARE 1670
6 SO LONG AS IT ‘S 1501
7 SO LONG AS THERE IS 1324
8 SO LONG AS THEY DO 1227
9 SO LONG AS IT DOES 1004
10 SO LONG AS YOU ‘RE 976
11 SO LONG AS YOU CAN 903
12 SO LONG AS THEY HAVE 650
13 SO LONG AS YOU KEEP 577
14 SO LONG AS THERE ARE 569
15 SO LONG AS THEY ‘RE 547
16 SO LONG AS IT WAS 485
17 SO LONG AS WE ARE 410
18 SO LONG AS THEY CAN 397
19 SO LONG AS YOU KNOW 362
20 SO LONG AS THEY WERE 345

on condition that * *

1 ON CONDITION THAT HE WOULD 58

  autoevolution

The car eventually made its way back to Germany, where its current owner purchased it on condition that he would one day restore it and not use it as a speculative investment.

2 ON CONDITION THAT HE SHOULD 57
3 ON CONDITION THAT IT IS 43
4 ON CONDITION THAT THEY ARE 41
5 ON CONDITION THAT IT BE 32
6 ON CONDITION THAT THEY WOULD 32
7 ON CONDITION THAT THEY SHOULD 30
8 ON CONDITION THAT : 26
9 ON CONDITION THAT HE BE 25
10 ON CONDITION THAT HE NOT 24
11 ON CONDITION THAT THEY BE 23
12 ON CONDITION THAT HIS NAME 20
13 ON CONDITION THAT HE DOES 19
14 ON CONDITION THAT THEY NOT 18
15 ON CONDITION THAT THEY DO 17
16 ON CONDITION THAT HE WILL 16
17 ON CONDITION THAT IT WAS 16
18 ON CONDITION THAT SHE WOULD 16
19 ON CONDITION THAT THE DEFENDANT 16
20 ON CONDITION THAT HE ENTER 15

in the event that *

(sadly iWeb has imposed a 5 token limit on all searches!)

1 IN THE EVENT THAT THE 11325

  Rojak Daily

In the event that the buckle won’t disengage, move the strap over your head and attempt to lift your legs out from underneath if you aren’t injured and able to move.

2 IN THE EVENT THAT YOU 10759
3 IN THE EVENT THAT A 6630
4 IN THE EVENT THAT YOUR 2722
5 IN THE EVENT THAT ANY 2106
6 IN THE EVENT THAT AN 1856
7 IN THE EVENT THAT WE 1838
8 IN THE EVENT THAT THEY 1398
9 IN THE EVENT THAT IT 1360
10 IN THE EVENT THAT THERE 1346
11 IN THE EVENT THAT THIS 713
12 IN THE EVENT THAT ONE 614
13 IN THE EVENT THAT I 587
14 IN THE EVENT THAT SOMETHING 480
15 IN THE EVENT THAT HE 426
16 IN THE EVENT THAT SUCH 378
17 IN THE EVENT THAT SOMEONE 375
18 IN THE EVENT THAT NO 319
19 IN THE EVENT THAT ALL 220
20 IN THE EVENT THAT , 199