1 being, 2 saying, 3 to open, 4 taking, 5 winning, 6 to lock, 7 to say, 8 to snow, 9 driving, 10 changing, 11 to water, 12 to make
1 snowing / to snow, 2 to take over / taking over, 3 to visit, 4 waiting, 5 eating, 6 walking / to walk, 7 reading, 8 to study, 9 meeting, 10 to do, 11 asking, 12 looking, 13 jogging, 14 to go, 15 going, 16 to offend, 17 to finish, 18 going / to go, 19 writing, 20 washing / to be washed, 21 to have, 22 winning, 23 to inform, 24 swim, 25 doing, 26 having, 27 listening / to listen, 28 saying / having said
In sentence 1 there is no indirect object; in this case the -ing form must be used. In sentence 2 ‘recommended’ is followed by an indirect object (us); in this case the infinitive is used.
In sentence 1 ‘posting’ refers to the past: the letter was posted. In sentence 2 ‘to post’ refers to the future: the letter has not yet been posted. Sentence 2 has the same meaning as: Don’t forget to post the letter.
‘Try drinking’ means: make an experiment. ‘Try to drink’ means: make an attempt.
1 I am not used / accustomed to driving at night / during the night.
2 They continued talking / to talk. (They went on talking.)
3 I cannot remember saying / having said this. ‘Remember’ can also be followed by a ‘that’-clause: ... that I have said this.
4 Do you know when killing seals / the killing of seals was prohibited / forbidden?
5 It has stopped / ceased snowing.
6 The grass / lawn needs mowing / to be mowed / to be mown.
7 Who recommended / has recommended selling these shares?
8 What do you intend to do / doing. / What are you planning to do? / What do you plan to do?
9 They started / began singing / to sing.
10 This means starting again.
11 Don’t forget to switch off the light before going to bed. / Remember to switch off …
12 I regret having hurt you. ‘Regret’ can also be followed by a ‘that’-clause: ... I regret that I have hurt you.
13 If you want to lose weight, why don’t you try eating less? / Why don’t you …, if you want to …
14 Look, it is starting / beginning to snow.
15 They were busy moving (house).
16 I prefer staying / to stay at home tonight / this evening. / I had / would rather stay …
17 I learned to surf / surfing / how to surf when I was on holiday in Hawaii. / In Hawai on holiday ...
18 We would like to sign the contract next week.
19 Most people do not like being criticised / to be criticised.
20 We used to buy these parts / components in Germany.
21 Manufacturing airplane / plane / aeroplane components / parts is our main / chief / principal activity.
22 He was suspected of having evaded / dodged tax / taxes.
23 We consider expanding our network.
24 Starting a business is an important decision.
25 After having read the letter, she signed. / Having read the letter, she signed.
26 I look forward to meeting you. / I am looking forward …
27 Don’t do this without asking his advice.
1 to wake: After ‘forget’ the to-infinitive must be used when the future is referred to.
2 having promised / promising: After ‘remember’ the -ing form is used when the past is referred to. In this case ‘remember’ can also be followed by a ‘that’-clause: ... that I have promised that.
4 to hear: After ‘would like’ the to-infinitive is used.
6 to write: After ‘advise’ the to-infinitive is used when it is followed by an indirect object.
7 to hurt: After ‘mean’ the to-infinitive is used when this verb means intend.
8: to save: After ‘try’ the to-infinitive is used when this verb means make an attempt.
9 (how) to ride: ‘Learn’ is followed by a to-infinitive. The -ing form can only be used if lessons or study are referred to.
10 hearing: After a preposition (to) the -ing form is used.
11 closing: After ‘mind’ the -ing form is used.
1 having, 2 playing / to play, 3 dancing, 4 having, 5 keeping, 6 longing, 7 going, 8 studying (if ‘to’ is seen as a preposition ‘naar’) / to study (if ‘to’ means ‘om te’)
1 to fall / falling, 2 drinking, 3 to vote