PREESENS VERBIN PERUSMUOTO (+S), kysymyksissä DO/DOES, kielloissa DON'T/DOESN'T

I buy candy every week. I don't usually buy ice cream. Do you often buy clothes?
He buys new clothes every other month. Does he buy a lot of candy?
OLLA-VERBI:
Is he your neighbour? - No, he isn't. (ei do-apuverbiä kysymyksissä ja kielloissa)


IMPERFEKTI  VERBIN IMPERFEKTIMUOTO, kysymyksissä ja kielloissa DID (NOT) + VERBIN PERUSMUOTO

I bought a new jacket yesterday. She didn't buy anything. Did Joe buy anything?
OLLA-VERBI:
I was in town with Joe and Sue yesterday. Were you in town, too? - No, I wasn't. (ei do-apuverbiä kysymyksissä ja kielloissa)


PERFEKTI   HAVE/HAS + VERBIN 3. MUOTO, kieltosana NOT

I have bought this a few months ago. Has he bought anything this week? - No, he hasn't.


PLUSKVAMPERFEKTI   HAD + VERBIN 3. MUOTO, kieltosana NOT

I had bought these jeans before I realized that the other pair were a lot cheaper.
Joe was happy he hadn't made the same mistake. 
Had you seen him before?


FUTUURI   WILL/(SHALL) + VERBIN PERUSMUOTO, kieltosana NOT

Shall we meet after school?
Not today, sorry. I'll meet my granny at the library. 
I won't have anything tomorrow. Shall we meet then?

KONDITIONAALI + ehtolause would/could/should + verbin perusmuoto, ehtolauseessa imperfekti

Could we meet after school?
I'd love to see you after school, but I can't, sorry. I should study for my maths test.
Maybe we could see each other tomorrow then, if you didn't have anything else?