Example sentences of "only when it [is] " in BNC.

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1 A surplus is an embarrassment only when it is subsidised : unsubsidised , it becomes an export success .
2 He prepares to do so , and only when it is clear that he will obey the divine command does God at the last moment spare his son and tell him to kill a sheep instead .
3 It will be recalled that , according to this theory , a stimulus is held to be fully effective only when it is able to generate the Al ( primary activation ) state in the node that constitutes its central representation .
4 In particular , a stimulus can come to acquire associative strength as a CS only when it is represented in the A1 state in company with another active node — excitatory conditioning will occur when the US node is in A1 ; inhibitory conditioning when the US node is in A2 ( see Chapter 1 ) .
5 Appropriate feedback is vital in the patient 's relearning process , so he receives praise only when it is deserved : if he fails in any way , the physiotherapist remains encouraging and positive about it , but shows him how and why he went wrong , or she may simply leave that task for the moment and return to it later , when the patient can concentrate and get it right .
6 It is clear that time will be allowed for improvements to be carried out and only when it is clear that there is no prospect of the business in question being able to operate without causing an odour , which amounts to a statutory nuisance , will the court permit the issue of a writ of sequestration for contempt of court , in committing breaches of the undertaking not to cause a statutory nuisance , thus closing the business down without compensation .
7 Only when it is totally convinced that the danger is past will the snake finally and with great caution start to move away .
8 Only when it is actualized through classroom activity can it have an effect on learning .
9 They also claim that forgiveness produces reconciliation only when it is preceded by repentance .
10 Only when it is exposed to chemicals that harden the tissue and inhibit decay , a method known as fixation , is the brain easily studied and only then will it reveal the complexities of its organization .
11 The concept of honour , artificial as it can often seem , can be an abiding emotional force in fiction , but only when it is demonstrated fully and specifically through believable characters as well as believable action .
12 New tonofibrillae become attached to the epicuticle only when it is growing .
13 Electoral reform can , it seems , be realistically expected only when it is initiated by a minority Conservative or Labour government as the price of survival exacted by a party or combination of parties holding the balance of power .
14 Vision comes alive only when it is shared .
15 When a white bar is moved to and fro as shown to the left , the neuron responds only when it is nearly vertical , and only for one direction of movement ( from Hubel 1988 : see Further Reading ) .
16 Only when it is very dark will he come out to feed on tablet food .
17 The power to stop a prosecution arises only when it is an abuse of the process of the court .
18 Therefore , N-Oct 5 protein probably can inhibit only when it is in large excess to N-Oct 3 .
19 You should change your needle regularly , and not only when it is blunt or broken .
20 Therefore , though musically it is excellent for the voice to exploit its complete range , from a practical viewpoint we should use the ‘ comfortable ’ zone more than any other , and venture into extreme ranges only rarely , and then only when it is very much to the point .
21 The rodding arm of an interceptor trap needs to be used only when it is the final length of the drains which are blocked
22 It should be explained that sale opportunities should be referred to the Network only when it is certain that they have an international implication .
23 Only when it is dark should you leave — and be careful !
24 It is strongly recommended that this module type is used only when it is totally impractical to embed a header in a file to be controlled by LIFESPAN ( e.g. in binary files ) , since :
25 * Use a pronoun only when it is completely clear what it refers to ( see p. 122 ) .
26 But only when it 's far off .
27 But despite much grooming it ca n't dislodge the mite , which will move only when it 's ready ( generally in a day or so ) to transfer to another host .
28 Only when it 's ringing .
29 ‘ Unfortunately I ca n't always do it , only when it 's fairly obvious .
30 Only when it 's misdirected .
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