1)以下动词后,只能接动名词作宾语,如:admit,appreciate,consider,delay,enjoy,finish,keep,imag ine,mind,miss,practise,resist,risk,save,suggest,don't mind,give up,insist,on, put off等。
advise,allow,encourage,forbid,permit等动词后接动名词作宾语,或带不定式作宾语补足语。如:
Our teachers don't permit our swimming in the lake.
Our teachers don't permit us to swim in the lake.
2)在下列情况下,一般要用不定式:
①hate,like,love前有would(should)时,如:I'd like to have a cup of coffee.
②当谓语动词begin,continue,start等是进行式时,如:Thestudents are starting to work on the di fficult maths problem.
③begin,continue,start与know,understand等状态动词连用时,如:I soon began to understand what was happening.
3)部分动词后接不定式或动名词时,意义差别较大,应根据句子语境选择使用。
①forget,remember,regret后接不定式,表示现在或未来的动作,接动名词表示动作已经发生。如:
Don't forget fo post the letter for me.
Have you forgotten meeting her in Beijing Airport?
Remember to close the windows before you leave.
I remember writing him a letter a year ago.
We regret to tell you that all of you are not invited toattend the meeti