tar的第三人稱單數（三單）為：tars...

The roof was covered with tar.屋頂涂抹了一層瀝青.The pipe is caked with tar.煙斗里漬了很多油子.They drove across the river to New Hampshire on a hot tar road.他們沿著一條滾燙的柏油路開過了河，來到新罕布什爾州。...

tar的復數形式為：tars...

tar的一般過去時為：tarred...

n.焦油，瀝青，柏油，尼古丁，水手，水兵vt.以焦油或瀝青覆蓋或涂抹（某物）...

Boron - substituted polyaromatic mesophase prepared by co - pyrolysis of a tar pitch with pyridine - borane complex under autogeneous pressure.以煤焦油瀝青和吡啶硼烷為原料采用加壓熱縮聚工藝制備硼取代聚芳烴中間相瀝青.A new syntan product prepared with tar p...

tar的現在進行時為：tarring...