Prema funkciji u rečenici veznici se dijele na:

• dopunske (coordinative): and (i), but (ali), or (ili), yet (ipak) i dr.
• zavisne (subordinative): that (da), if (ako), when (kada), though (iako) i dr.

Glavni veznici i njihova upotreba:

before - We saw him before he left his office. (vidjeli smo ga prije nego što je napustio ured)

since - It was a long time since we met. (odavno se nismo vidjeli)

until, till - We all waited until the rain stopped. (svi smo čekali dok kiša nije prestala)

as soon as - As soon as he came we called his father. (čim je došao pozvali smo njegovog oca)

as well as - He did it as well as he could. (on je to učinio onako kako je on mogao)

as long as - You may keep this book as long as you want. (možete zadržati ovu knjigu koliko god želite)

either...or - Either you or your brother must go. (ili vi ili vaš brat morate ići)

neither...nor - Neither he or his sister knew this lesson. (ni on ni njegova sestra nisu znali ovu lekciju)

both...and - Both you and I think so. (oboje mislimo tako)

unless - I am not going to do this unless it is necessary. (neću to da uradim ako nije potrebno)

in order to - He came in order to hear news. (došao je da bi čuo vijest)

as much as - I have read as much I had time. (čitao sam onoliko koliko sam imao vremena)

though (although) - He knows that I was right, although he wouldn't admit it.
(on zna da sam bio u pravu iako on to ne bi priznao)

whether - I don't know whether to go or not. (ne znam da li da idem ili ne)

because - I don't like it because it's too tiresome. (ne volim to jer je isuviše zamorno)