点く
つく
to be started, to be switched on
Tsuku (点く) is a godan verb meaning "to be started, to be switched on". Its polite form is 点きます (tsukimasu), its te form is 点いて (tsuite), its past form is 点いた (tsuita), and its negative form is 点かない (tsukanai).
Godan verbJLPT N4
Tsuku (点く) conjugation quick reference
点く means "to be started, to be switched on". Its main forms are listed below, with links to the grammar pattern behind each form.
Tsuku example sentences
電気が点きます。
The light turns on.
テレビが点きません。
The TV doesn’t turn on.
さっきランプが点きました。
The lamp turned on a little while ago.
How to use Tsuku: grammar notes
•点く (つく) is usually used with the particle が to show that something like a light or fire has turned on by itself — for example, 電気が点いた (The light turned on).
•Don’t confuse 点く (つく – to be turned on) with つける (to turn on); use 点く when something turns on, not when someone is doing the action.
•You’ll often hear 点く in the past tense 点いた (ついた) when talking about lights or appliances that turned on — like テレビが点いた (The TV turned on).
•JLPT N4 level
Common phrases with Tsuku
電気が点く（でんきがつく）
The light turns on
火が点く（ひがつく）
The fire ignites / The fire is lit
テレビが点く（てれびがつく）
The TV turns on
Tsuku (点く) conjugation table
| Form | Japanese | Romaji |
|---|---|---|
| Basic Forms | ||
| Dictionary Form | 点く | tsuku |
| Masu Form | 点きます | tsukimasu |
| Te Form | 点いて | tsuite |
| Past Form | 点いた | tsuita |
| Negative Form | 点かない | tsukanai |
| Past Negative | 点かなかった | tsukanakatta |
| Polite Forms | ||
| Polite Present | 点きます | tsukimasu |
| Polite Past | 点きました | tsukimashita |
| Polite Negative | 点きません | tsukimasen |
| Polite Past Negative | 点きませんでした | tsukimasendeshita |
| Advanced Forms | ||
| Potential Form | 点ける | tsukeru |
| Passive Form | 点かれる | tsukareru |
| Causative Form | 点かせる | tsukaseru |
| Causative Passive | 点かされる | tsukasareru |
| Volitional Form | 点こう | tsukou |
| Imperative Form | 点け | tsuke |
| Conditional Forms | ||
| Conditional (ば) | 点けば | tsukeba |
| Conditional (たら) | 点いたら | tsuitara |
| Other Forms | ||
| Progressive Form | 点いている | tsuiteiru |
| Desire (たい) | 点きたい | tsukitai |
| Prohibition | 点くな | tsukuna |