动词roof在英语中所有时态的构词法
下面是英语动词roof的变位表。
动词roof在现在时态中的变体
Present Tense
- I roof
- you roof
- he|she|it roofs
- we roof
- you roof
- they roof
Present Continuous
- I am roofing
- you are roofing
- he|she|it is roofing
- we are roofing
- you are roofing
- they are roofing
Present Perfect
- I have roofed
- you have roofed
- he|she|it has roofed
- we have roofed
- you have roofed
- they have roofed
Present Perfect Continuous
- I have been roofing
- you have been roofing
- he|she|it has been roofing
- we have been roofing
- you have been roofing
- they have been roofing
如何在英语中使用这些变位时态？现在时在英语中表达习惯、频率、一般事实和状态。现在进行时主要表达的是仍在进行的行动或活动的意思。现在完成时表达的概念总是与现在或某一事件的结果有关。最后，现在完成时与活动的概念相关联，即持续时间。
动词roof在过去时态中的变体
Simple past
- I roofed
- you roofed
- he|she|it roofed
- we roofed
- you roofed
- they roofed
Past continuous
- I was roofing
- you were roofing
- he|she|it was roofing
- we were roofing
- you were roofing
- they were roofing
Past perfect
- I had roofed
- you had roofed
- he|she|it had roofed
- we had roofed
- you had roofed
- they had roofed
Past perfect continuous
- I had been roofing
- you had been roofing
- he|she|it had been roofing
- we had been roofing
- you had been roofing
- they had been roofing
在英语中如何使用这些变位时态？ 简单过去时表达与现在无关的已完成的动作，过时的过去动作或习惯。它在英语中非常经常使用。过去连续时态（简单过去时+ING）则用于谈论过去正在进行的行动，或者当另一个行动发生时，过去的行动正在进行。过去完成时用于表示该动作发生在另一个过去动作之前。最后，过去完成时用于指过去的一个连续动作，一直持续到另一个过去的动作。
动词roof在未来时态中的构词法
Future
- I will roof
- you will roof
- he|she|it will roof
- we will roof
- you will roof
- they will roof
Future continuous
- I will be roofing
- you will be roofing
- he|she|it will be roofing
- we will be roofing
- you will be roofing
- they will be roofing
Future perfect
- I will have roofed
- you will have roofed
- he|she|it will have roofed
- we will have roofed
- you will have roofed
- they will have roofed
Future perfect continuous
- I will have been roofing
- you will have been roofing
- he|she|it will have been roofing
- we will have been roofing
- you will have been roofing
- they will have been roofing
在英语中如何使用这些变位时态？未来用于谈论未来的事实行动。未来连续式用于谈论未来将要发生的事情。未来完成时是英语中不常使用的一种连接时态，这种连接时态用于谈论未来的事实行动，在另一个行动之前。最后，未来完成时很少使用，这种时态用于谈论一个正在进行的、在另一个行动之前的未来行动。
英语中分词的不同形式，用于动词roof。
英语中的祈使句，用于动词roof。
用英语拼写另一个动词
其他随机发现的英语动词： achromatize
concentre
poison
premise
revitalise
romance
roneo
rook
roster
scumble
splay
touchdown
