1. S + V + to infinitive: agree, appear, arrange, attempt, ask, decide, determine, be determined, fail, endeavour, forget, happen, hope, learn, manage, offer, plan, prepare, promise, prove, refuse, remember, seem, tend, threaten, try, volunteer expect, want, mean,...
2. S + V + bare infinitive: can/ could/ will/ would/ shall/ should/ must/ have to/ had better/ ought to/ would rather/ help,...
3. S + V + O + to infinitive: advise, allow, enable, encourage, forbid, force, hear, instruct, invite, let, order, permit, persuade, request, remind, see, train, teach how, urge, warn, tempt,...
4. S + V + O + bare infinitive: help, make, let, see, hear, feel, watch, notice, smell, taste, have,...