Este o construcție care se folosește cu
a) verbe de percepție senzorială, activitate mentală, declarative, cauzative, ce exprimă o cerere, un ordin, permisiunea și verbe intranzitive prepoziționale la diateza pasivă: to hear, to notice, to feel, to notice, to observe, to perceive, to see, to watch, to believe, to consider, to deny, to imagine, to know, to suppose, to think, to understand, to admit, to announce, to declare, to pronounce, to report, to say, to state, to have, to help, to let, to make, to ask, to beseech, to beg, to invite, to request, to urge, to allow, to command, to order, to permit.
- They were seen to leave the office very late.
- He was known to be a young men without fortune.
- He was ordered to come at once.
- She must be persuaded to tell the truth.
- Children were not allowed to come in.
- He was waited for to come back
b) verbe la diateza activă: to appear, to chance, to happen, to probe, to turn out, to seem
- He just happened to be passing so he dropped in.
c) construcția to be +, certain, likely, unlikely, sure
- They were sure to come.