When two verbs appear together in English, the form of the second verb depends on the first. It may be a to-infinitive, a gerund (-ing), or a bare infinitive. Choosing the wrong form is one of the most persistent intermediate errors.
Not sure which level to practice?Take the free level testWhen one verb follows another, the first verb decides the form of the second.
Some verbs take a to-infinitive (decide, promise, refuse, manage, seem: She refused to sign), others take the -ing form (enjoy, avoid, mind, admit, postpone: He admitted taking it), and a group of them put a person in between (tell, ask, want, encourage, warn: They told us to wait). After a preposition the -ing form is the only option, and that includes the to in be used to and look forward to (I'm looking forward to seeing you). A modal is the exception: it takes the bare base verb, with no to and no -ing.
A decision or a promise takes a to-infinitive
We decided to postpone the launch.
Enjoy and mind take the -ing form
I don't mind working late.
Asking or telling somebody to act, where the person comes first
The manager asked us to meet the deadline.
Either form is fine after like and start
It started to rain or It started raining.
Remember and forget change meaning with each form
I remember locking the door for a memory and Remember to lock the door for a task.
The -ing form follows a preposition and phrases like it's worth
It's worth checking the invoice.
Practice
I promisedmy sister with her math homework.
They wanta bigger apartment.
Hint: buy
I'd like a coffee, please.
Put the words in the correct order:
Put the words in order.
Would you like to the party?
I'd like you a question about the recipe.
Would you likeus for lunch?
Hint: join
My parents want me a doctor.
Put the words in the correct order: