whatever引导什么从句时态

　　Whatever system you choose, it must be run in properly.

　　不管你选择什么样的体系，都必须经过适当的磨合。

　　I felt a need to please people, whatever the cost in time and energy.

　　我感到一定要使人们满意，耗费多少时间和精力都在所不惜。

　　We told him we'd back him whatever.

　　我们告诉他，在任何情况下我们都会支持他。

　　You have our support, whatever you decide.

　　不管你作何决定，都会得到我们的支持。

　　You can dye your hair whatever colour you like.

　　你的头发你想怎么染就怎么染。