1 b; 2 c, 3 a; d
May is more formal than can and could. Could is more formal and more polite than can.
1 Je had het me weleens kunnen vertellen.
2 We zijn misschien te optimistisch geweest.
3 De inflatie kan volgend jaar stijgen. / … stijgt misschien.
4 Ze hebben hun prijzen niet mogen verhogen.
5 Het zou weleens te laat kunnen zijn.
6 We mogen artikelen na acht dagen niet terugnemen.
7 Mocht je / u je / uw creditcard verliezen, laat het ons dan onmiddellijk weten. / Als u / je … mocht verliezen …
1 May I copy this software? / Am I allowed to …? / Can I …? / Could I …?
2 The company was not allowed to dismiss / fire / sack me.
3 You may not park here. / You are not allowed to park here.
4 Can / Could / May I use your laptop please?
5 Can / Could / May I use the toilet / lavatory please?
6 It may / might / could rain tomorrow. / Perhaps / Maybe it will rain tomorrow.
7 You may / might / could be right. / Perhaps / Maybe you are right.
8 I have not been able to finish the report. / I could not finish .. / I was not able to finish …
9 Can / Could I help you?
10 You might have phoned / called earlier / sooner. / You could have …
1 May / can / could I use your mobile (phone) / cell phone?
2 Without a valid visa you may not travel / you are not allowed to travel in China. / You … without a valid visa.
3 The oil companies were not allowed to raise / increase the prices.
4 Could / may / can I ask you a few / some questions?
5 We will / shall not be allowed to export these goods without a licence.
6 You might / could have checked the expense accounts.
7 If you should be dissatisfied / Should you be dissatisfied, please let us know.
8 They have not been allowed / were not allowed to visit the prisoners.
9 They may not transport / are not allowed to transport these chemical substances through the village.
10 The employees were not allowed to sell their options within a year.
11 The employers will never be allowed to do this.
12 The management might / could have told us earlier / sooner (that) they want to close (down) the factory / works.
13 Could / Can / May I use the toilet please?
14 Should you want / If you should want more information, we advise you to visit our website.
15 The journalist asked if he could publish / was allowed to publish my photo.
1 Should anyone call / If anyone should call: In a clause of condition ‘should’ is used to express that something could happen but that it is not very probable.
2 May / Can / Could: We use may / can / could to ask for permission. We can use be allowed to when we talk about rules made bij somebody else.
3 correct (When we talk about rules made by somebody else, we can use be allowed to.)
6 If you should see / Should you see: In a clause of condition ‘should’ is used to express that something could happen but that it is not very probable.
7 was not allowed to interview: To express permission in the past, we use be allowed to.
8 correct (To express permission in the past in indirect speech, could can be used.)
1 may not be sent
2 have to be packed / should be packed / must be packed / need to be packed / are to be packed
3 cannot be guaranteed
4 had better
5 Should you have / If you should have