Going to a destination with へ
Point to an imaginary supermarket and say スーパーへ行きます. Write へ, but pronounce the particle as え.
1. Destination + へ + movement
へ follows the destination: 駅へ行きます. You write it as へ and pronounce it as え in this function. The final verb carries tense and negation.
昨日、コンビニへ行きました is past; 明日、スーパーへ行きます can be a plan. This reuses familiar polite endings and introduces no general conjugation rule.
駅へ行きます。
昨日、コンビニへ行きました。
2. Going, coming, and returning
行きます is going away from the current reference point. 来ます is coming towards the speaker's or conversation's reference point. 帰ります is returning home or to a familiar base.
Do not automatically use 来ます for every trip to Japan. 先月、日本へ来ました fits when the conversation's viewpoint is in Japan. 冬休み、うちへ帰ります fits when うち is the base.
3. どこへ asks for a destination
どこへ行きますか asks where someone is going. The answer normally names a place before へ: デパートへ行きます. By contrast, どこですか asks where something or someone is.
With どこへ, the pronunciation remains どこえ. The final verb determines direction and carries tense.
明日、どこへ行きますか。
デパートへ行きます。
4. Keep functions separate
In broader Japanese, に can also mark a destination, but this unit practises へ. In this route, reserve に for the time-point function in lesson 29.
駅があります and 駅へ行きます are both correct, but answer different questions: a station exists versus someone goes to the station. が from lesson 26 and へ from this lesson keep their own functions.
駅があります。
駅へ行きます。