Verb
come/go/arrive (get to/reach)
Used for a
have/has been in/at
continuous state
She has left home. She left home last Tuesday. She has been away from home since last Tuesday.
have been to, have gone to ,have been in 1.Guilin is a good place. I __h__a_v_e_b_e_e_n___
there twice. 2.Sandy _h__a_s_g_o_n_e_t_o__the library. She will be
night . 4. Mr. Huang has kept the books __si_n_c_e_ a
week ago . 5.I have taught in the school _s_in_c_e_ I
came here . 6.We have been friends f_o_r_ a long time .
He has lived here since he was born.
Some verbs, such as come, go, buy and leave, can be used in the present perfect sense, but they cannot be used with for or since in positive statements. come, go, buy, leave 可以用于现在完成时, 但不能和for或since连用; for 和since和持续 性动词连用,不能和短动作连用