Грамматические темы: Present Tenses, Gerund, to-infinitive, bare infinitive
материал по английскому языку (8, 9, 10, 11 класс) на тему

Ing- form:

• Function of a subject: Exercising is good for you.
• After verbs: love, like, enjoy, prefer, dislike, hate: I enjoy eating Chinese food. BUT: after would like (я бы хотел), would prefer (я предпочел бы), would love (с удовольствием) – infinitive with to: I would love to come to your party.
• After prepositions: I was thinking of calling John.
• After preposition to with such verbs and expressions as: look forward to, be used to, in addition to, object to, prefer smth to smth: I am used to walking her dog every every morning.
• After the verbs: admit, appreciate, avoid, consider, continue, deny, fancy, imagine, mind, miss, practice, prevent, quit, save, suggest: You should avoid eating junk food.
• After expressions: be busy, it’s no use, it’s no good, it’s (not) worth, can’t help, there’s no point (in), can’t stand, have difficulty in, have trouble: I have difficulty in understanding what he says.
• After verbs: hear, listen to, notice, see, watch, feel to express incomplete action: I saw Paul waiting for a bus. BUT: to describe completed action we use infinitive without to: I didn’t see Paul get on the bus (я не видел, как Пол сел в автобус).

Infinitive + to:

• To express purpose: She went to buy some food.
• After verbs refer to future: agree, appear, decide, expect, hope, plan, promise, refuse, want: I expect him to be here.
• After too/enough: She is old enough to watch the film.
• I was sad to hear you were not feeling well (было грустно услышать, что ты чувствуешь себя плохо)
• With so + adjective + as: Would you be so kind as to help me with the door?

Infinitive without to:

• After modal verbs: can, must, may, might, have to, ought to, etc: Sally can speak English fluently.
• After see, hear, feel, let, make: They let him travel on his own. BUT: we use infinitive + to when these verbs are in passive form: be made, be seen, be heard: He was seen to steal goods from the shop.
• After would rather/had better: You had better put a jacket on.