📒 the basic form of a verb such as be or run. In English, an infinitive is used by itself, for example swim in She can swim (this use is sometimes called the bare infinitive), or with to (the to-infinitive) as in She likes to swim.
📒 to place an adverb between ‘to’ and the infinitive of a verb, for example to say ‘to strongly deny the report’. Some people consider this to be bad English style.