No. Walk is a verb, or a noun (an action or a place). It cannot be a preposition.
No, "wrote" is not a preposition. It is a verb that indicates the action of writing.
No, "undo" is not a preposition. It is a verb meaning to reverse or cancel an action.
No, "wait" is not a preposition. It is a verb that indicates pausing or delaying action.
No, it is not a preposition. The word do is a noun or verb or helper verb.
No. Walk is a verb, or a noun (an action or a place). It cannot be a preposition.
No, "wrote" is not a preposition. It is a verb that indicates the action of writing.
Along is not a verb. It is a preposition.
No. In is a preposition.
Preposition
No, "undo" is not a preposition. It is a verb meaning to reverse or cancel an action.
No, "wait" is not a preposition. It is a verb that indicates pausing or delaying action.
No, it is not a preposition. The word do is a noun or verb or helper verb.
No, "poured" is not a preposition. It is a verb that describes the action of pouring.
No, "move" is not a preposition. It is a verb that indicates an action of changing position or location.
No, the word "forget" is not a preposition. It is a verb used to describe the action of not remembering something.
"After" is a preposition, not an action verb. It is commonly used to indicate the time following an action or event.