Can the suffix ed be used in future tense?

No, the suffix "-ed" is used to form the past tense and past participle of regular verbs in English. It is not used to indicate the future tense.

For example:

* Past tense: "I walked to the store."

* Past participle: "I have walked to the store many times."

To express the future tense, you can use:

* Will + verb: "I will walk to the store tomorrow."

* Going to + verb: "I am going to walk to the store later."

* Present continuous tense for planned future events: "I am walking to the store after lunch."