Thisyoungmanwasveryhard-working.Healwayscontinuedtoworkthroughhisbreaktimeand
complainedthatthoseoldfolkswerewastingtime,havingtobreakseveraltimesadaytodrinkandchat.这里always不是一般现在时吗?怎么后面接过去时?还有,最后一句havingto----在句子中充当什么成分