"Tienen que comprar"
In this sentence "Los profesores tienen que comprar la tiza"... Why do you put the que inbetween two verbs? Are you not allowed to have two verbs next to eachother? I just didn't know the rule on that and couldn't exactly find an explanation... because to me that would translate as "the professors have to buy the chalk"... so I just didn't know where the "que" fit in -- Thanks!
1 Answer
"Tener que" is more or less equivalent to "have to" [must] in English, where you also cannot omit the "to".
There is no such rule in Spanish that you seem to imply which requires "que" to separate two verbs. Simple example with two adjacent verbs: Me gusta nadar en el mar.