Present and Past Tenses
Verb tenses tell your reader when something happens. The three simple tenses cover the most basic time frames: present, past, and future. They're called "simple" because they describe straightforward actions or states without getting into whether something is ongoing or completed relative to another event. That's what aspect does, and you'll cover it later in this unit.
Simple Present Tense
The simple present expresses habitual actions, general truths, and current states. Think of it as the tense for things that are generally or repeatedly true.
- Use the base form of the verb for most subjects: I play, you play, we play, they play
- Add -s or -es for third-person singular subjects: he plays, she watches, it runs
The -es ending applies when the verb ends in -s, -sh, -ch, -x, or -z (catches, fixes, buzzes). If a verb ends in a consonant + y, change the y to -ies (carry → carries, study → studies).
Common time expressions that signal simple present: "every day," "always," "usually," "never," "on Mondays."
Water boils at 100°C. (general truth) She walks to school every morning. (habitual action) He seems tired. (current state)
Simple Past Tense
The simple past describes actions or states that started and finished in the past. The action is done.
- Regular verbs form the past tense by adding -ed to the base form: walked, played, talked
- Irregular verbs have unique past forms that don't follow the -ed pattern: went, saw, ate
Spelling notes for regular -ed endings:
- If the verb ends in -e, just add -d (liked, moved)
- If it ends in consonant + y, change y to -ied (carried, studied)
- If it ends in a single vowel + single consonant (in a stressed syllable), double the final consonant (stopped, planned)
Common time markers for past tense: "yesterday," "last week," "in 2010," "three days ago."
They visited Paris last summer. She wrote the report on Monday.

Regular and Irregular Verbs
Regular verbs follow a predictable pattern across all their forms:
| Form | Rule | Example |
|---|---|---|
| Base | — | walk |
| Present (3rd person) | add -s/-es | walks |
| Past | add -ed | walked |
| Past participle | same as past | (has) walked |
Irregular verbs break that pattern. Their past tense and past participle forms vary and need to be memorized. Here are some of the most common ones:
| Base | Past | Past Participle |
|---|---|---|
| be | was/were | been |
| go | went | gone |
| have | had | had |
| do | did | done |
| sing | sang | sung |
| eat | ate | eaten |
| cut | cut | cut |
Notice that some irregular verbs, like cut, put, and set, stay the same in all three forms. Others change completely (go → went → gone). There's no shortcut here; you just have to learn them.
Regular verbs make up the majority of English verbs, but irregular verbs tend to be among the most frequently used words in the language.
Future Tense and Auxiliaries

Simple Future Tense
The simple future expresses actions or states that haven't happened yet. There are two main ways to form it:
- "Will" + base form: I will play, she will study, they will travel
- "Be going to" + base form: I am going to play, she is going to study
Both are correct, but they carry slightly different shades of meaning. "Will" often signals a decision made in the moment or a prediction, while "be going to" tends to indicate a plan already in place.
It will rain tomorrow. (prediction) I'm going to visit my grandmother this weekend. (pre-existing plan)
English also uses other structures to talk about the future:
- Present continuous for arranged future events: I am meeting him tomorrow.
- Simple present for scheduled events: The train leaves at 5 PM.
Common future time markers: "tomorrow," "next week," "in an hour," "later," "soon."
Auxiliary Verbs: "Do" and "Will"
Auxiliary (helping) verbs work alongside main verbs to build questions, negatives, and different tenses. Two auxiliaries are especially important for simple tenses.
"Do" (do/does/did) has three main jobs in present and past simple:
- Forming questions: Do you like coffee? Did she arrive on time?
- Making negatives: I do not agree. They did not come.
- Adding emphasis: I do love chocolate. (stresses that it's really true)
Note that "does" pairs with third-person singular in the present (Does he know?), and "did" covers all subjects in the past (Did they leave?). When "do/does/did" appears, the main verb stays in its base form: Does she like (not Does she likes).
"Will" primarily builds the future tense, but it also expresses:
- Willingness or promises: I will help you move.
- Predictions: It will be cold tonight.
- Conditionals: If it rains, I will bring an umbrella.
Both "do" and "will" always come before the main verb. They're the structural glue that lets English form tenses, ask questions, and negate statements without changing the main verb's form.