Present Continuous.
1. Look, father (to cut) the grass.
2.They (not to draw) anything at this moment.
3.She (to hide) from her brother now.
4. ....it...now?(to rain)

Past Continuous.
1.The students (to sit) at the lecture yesterday at 5.
2.He (to write) a letter when i entered the class.
3. What....you....(to do) yesterday at 8?
4.I (to speak) with Bob when you met me yesterday.

Present Perfect.
1.I know who (to break) the window.
2. ....you ever..... to Paris (to be)
3.My brother (to finish) already his studies.
4.I (to do) never it.
Эти предложения надо поставить в разные времена (надписаны над предложениями)

только Present Perfect под цифрой 2 очень странно

Present Continuous1)is cutting2)aren"t drawing3)is hiding4)Is it raining?Past Continuous1)were sitting2)was writing3)were you doing4)was speakingPresent Perfect 1)has broken2)Have ......ever3)has finished4)have done