Английский язык,формы глагола. Identify the following verb forms: refers to, can be described, transports, is integrated, used, were used, to make, were introduced, were developed, have, may require, is required, are grouped, need, communicate, can be used, have been, are applied, can play, can be engineered, can be divided, are standardized, exist, are thought, involves, may be considered.
refers to (present simple)
can be described (modal verb + present passive)
transports (present simple)
is integrated (present simple passive)
used (past simple)
were used (past simple passive)
to make (infinitive)
were introduced (past simple passive)
were developed (past simple passive)
have (present simple)
may require (modal verb + present simple)
is required (present simple passive)
are grouped (present simple passive)
need (present simple)
communicate (present simple)
can be used (modal verb + present passive)
have been (present perfect passive)
are applied (present simple passive)
can play (modal verb + base form)
can be engineered (modal verb + passive)
can be divided (modal verb + passive)
are standardized (present simple passive)
exist (present simple)
are thought (present simple passive)
involves (present simple)
may be considered (modal verb + present passive)
refers to (present simple)
can be described (modal verb + present passive)
transports (present simple)
is integrated (present simple passive)
used (past simple)
were used (past simple passive)
to make (infinitive)
were introduced (past simple passive)
were developed (past simple passive)
have (present simple)
may require (modal verb + present simple)
is required (present simple passive)
are grouped (present simple passive)
need (present simple)
communicate (present simple)
can be used (modal verb + present passive)
have been (present perfect passive)
are applied (present simple passive)
can play (modal verb + base form)
can be engineered (modal verb + passive)
can be divided (modal verb + passive)
are standardized (present simple passive)
exist (present simple)
are thought (present simple passive)
involves (present simple)
may be considered (modal verb + present passive)