Tullessasi

Tullessasi is a Finnish grammar form, the second-person singular adverbial participle of the verb tulla. It literally means “as you come” or “upon your coming” and is used to introduce a subordinate clause that describes an action occurring at the same time as the action of the main clause. The form indicates that the subject of the participle is the same person addressed by the main clause.

Formation and meaning: tullessasi is built from the verb stem tulles- with the suffix -si, which marks the second-person singular. The resulting non-finite clause conveys concurrent or conditional action carried out by you, the listener/reader. It can typically be translated as “as you come,” “when you come,” or “on your coming.”

Usage: The form appears mainly in written Finnish or formal speech, particularly in instructions, directions, or descriptions where a concise link between actions is desired. It is not typically used in casual spoken Finnish, where simpler coordination of clauses is common. Examples include: Tullessasi kotiin, muista sulkea ovi. (When you come home, remember to close the door.) Tullessasi ulos, pidä ovi kiinni. (As you go out, keep the door closed.)

Relation to other forms: Tullessasi is part of a broader system of adverbial participles or converbal forms in Finnish. Other person forms exist, such as tullessani (as I come) or tullessanne (as you all come), and tullessaan (as he/she comes). These forms carry the same grammatical function but refer to different grammatical subjects.

See also: Finnish grammar, adverbial participles, converbs.