Remember this!
The future tense form of 'complain' is formed by using the auxiliary verb will followed by the base form of the verb complain. Example: They will complain if the issue is not resolved. (They will complain if the issue is not resolved.)
Definition of “complain”
- to express dissatisfaction, pain, or resentment
- to make a formal accusation or charge
Tense sentence structure and examples:
Notes from a Native English Speaker
Here are the general structures of a present and past participle. Remember, some verbs have an irregular form and may not follow this structure: Present Participle: [Verb] -ing Past Participle: [Verb] -ed
| Future Simple | complain |
| Future Continuous | complaining |
| Future Perfect | complained |
Example
She will complain if the issue persists.
Example
They will complain about the delay in delivery.
Example
At this time tomorrow, I will be complaining about the poor service.
Example
They will be complaining about the lack of transparency.
Example
By the end of the week, she will have complained multiple times.
Example
They will have complained to the authorities by then.
