NON-FINITE VERB FORMS

or the number. Infinitive answers questions: what to do?

of a verb, adverb and adjective.
The present participle is formed

by the end  -ing:
to learn – learning

The past participle is also an impersonal form of the verb, also having the properties of the verb, adjective and adverb. But unlike the present participle, the past participle has only one unchangeable form, in fact, it is the third form of the ver

the suffix -ing, which combines the features of the noun

and the verb and carries in itself a connotation of the meaning of some process:playing , reading , walking .
In Russian, there is no form similar to gerund.