Verb requires an object before the infinitive clause.
allow him to go, enable students to learn, cause the fire to spread
doesn't allow us to enter
Did she advise you to apply?
See/Hear + Object + Bare V1 (complete action) OR V-ing (in progress) | Make/Let + Object + Bare V1.
saw him cross the road • heard her singing • made me cry
let him not leave
Did you see him jump?
| Example / Question | Positive / Short Answer | Negative / Short Answer |
|---|---|---|
| Verb + Object + To V1 | She allowed me to enter. | Not: She allowed me enter |
| Make + Object + Bare V1 | He made me cry. | Not: He made me to cry |
| Perception: Complete action | I saw her cross the street. | Watched the entire crossing |
| Rule | Base / Standard Form | Applied Form |
|---|---|---|
| Make & Let Bare Infinitive Rule | MAKE and LET (in active voice) MUST be followed by Object + Bare V1 (NO "to")! | made me work (CORRECT) vs made me to work (WRONG) |
| Passive of Make Rule | When "make" is changed into the PASSIVE voice, it takes a TO-infinitive: "I was made TO work"! | was made to work |
| Perception Verb Nuance Rule | Use Bare V1 after see/hear/watch for complete actions. Use V-ing for partial/ongoing actions. | saw him fall (complete) vs saw him falling (in progress) |
Express how someone causes or forces another person to act.
Differentiate between observing an action fully versus witnessing a moment of it.
State what is permitted or forbidden by authority.
"Let" is rarely used in the passive. Instead of "I was let go", native speakers say "I WAS ALLOWED TO go."
"I saw her dance" means I watched her entire performance from start to finish. "I saw her dancing" means I caught a glimpse of her while she was in the middle of dancing.
Yes! Both "He helped me TO move the sofa" and "He helped me move the sofa" are 100% correct in modern English.